{"id":18073,"date":"2025-08-25T18:13:31","date_gmt":"2025-08-25T09:13:31","guid":{"rendered":"https:\/\/biz.moneyforward.com\/work-efficiency\/basic\/?p=18073"},"modified":"2026-03-18T16:04:01","modified_gmt":"2026-03-18T07:04:01","slug":"ln%e9%96%a2%e6%95%b0%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9%ef%bc%9a%e3%82%a8%e3%82%af%e3%82%bb%e3%83%ab%e3%81%a7%e8%87%aa%e7%84%b6%e5%af%be%e6%95%b0%e3%82%92%e8%a8%88%e7%ae%97%e3%81%99%e3%82%8b","status":"publish","type":"post","link":"https:\/\/biz.moneyforward.com\/work-efficiency\/basic\/18073\/","title":{"rendered":"LN\u95a2\u6570\u306e\u4f7f\u3044\u65b9\uff1a\u30a8\u30af\u30bb\u30eb\u3067\u81ea\u7136\u5bfe\u6570\u3092\u8a08\u7b97\u3059\u308b"},"content":{"rendered":"<p>\u30a8\u30af\u30bb\u30eb\u3067\u6570\u5b66\u7684\u306a\u8a08\u7b97\u3092\u884c\u3046\u969b\u3001<strong>\u81ea\u7136\u5bfe\u6570<\/strong>\u3092\u6c42\u3081\u305f\u3044\u3068\u601d\u3063\u305f\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u304b\uff1f\u300c<strong>LN\u95a2\u6570<\/strong>\u300d\u306f\u3001\u81ea\u7136\u5bfe\u6570\u3092\u624b\u8efd\u306b\u6c42\u3081\u3089\u308c\u308b\u95a2\u6570\u3067\u3059\u3002\u81ea\u7136\u5bfe\u6570\u306f\u3001\u79d1\u5b66\u3084\u91d1\u878d\u3001\u7d71\u8a08\u306a\u3069\u306e\u5206\u91ce\u3067\u3088\u304f\u4f7f\u308f\u308c\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u30a8\u30af\u30bb\u30eb\u521d\u5fc3\u8005\u306e\u65b9\u306b\u3082LN\u95a2\u6570\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u304b\u3089\u3001\u5177\u4f53\u7684\u306a\u5229\u7528\u30b7\u30fc\u30f3\u3001\u4ed6\u306e\u95a2\u6570\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u306b\u3088\u308b\u5fdc\u7528\u4f8b\u3001\u305d\u3057\u3066\u3088\u304f\u3042\u308b\u30a8\u30e9\u30fc\u3068\u305d\u306e\u5bfe\u7b56\u307e\u3067\u3001\u7db2\u7f85\u7684\u306b\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<div id=\"post-below-intro\"><\/div><h2>LN\u95a2\u6570\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9<\/h2>\n<p><span style=\"background-color: #ffff99;\"><b>LN\u95a2\u6570\u306f\u3001\u6307\u5b9a\u3055\u308c\u305f\u6570\u5024\u306e\u81ea\u7136\u5bfe\u6570\u3092\u8a08\u7b97\u3059\u308b\u95a2\u6570\u3067\u3059\u3002<\/b><\/span>\u81ea\u7136\u5bfe\u6570\u3068\u306f\u3001\u5e95\uff08\u3066\u3044\uff09\u304c\u30cd\u30a4\u30d4\u30a2\u6570 e\uff08\u7d04 2.71828\uff09\u3067\u3042\u308b\u5bfe\u6570\u306e\u3053\u3068\u3092\u6307\u3057\u307e\u3059\u3002\u6570\u5b66\u306e\u8a18\u53f7\u3067\u306f ln(x) \u3068\u66f8\u304b\u308c\u307e\u3059\u3002<\/p>\n<h3>LN\u95a2\u6570\u306e\u66f8\u5f0f<\/h3>\n<p><span style=\"background-color: #ffff99;\"><b>LN\u95a2\u6570\u306e\u66f8\u5f0f\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/b><\/span><\/p>\n<p>=LN(\u6570\u5024)<\/p>\n<p><strong>\u6570\u5024:<\/strong> \u81ea\u7136\u5bfe\u6570\u3092\u8a08\u7b97\u3057\u305f\u3044\u6b63\u306e\u6570\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u3053\u306e\u300c\u6570\u5024\u300d\u306f\u3001\u771f\u6570\uff08\u3057\u3093\u3059\u3046\uff09\u3068\u547c\u3070\u308c\u307e\u3059\u3002<\/p>\n<h3>\u5177\u4f53\u7684\u306a\u4f7f\u7528\u4f8b<\/h3>\n<p><span style=\"background-color: #ffff99;\"><b>\u4f8b\u3048\u3070\u3001\u30bb\u30ebA1\u306b\u300c10\u300d\u3068\u3044\u3046\u6570\u5024\u304c\u5165\u3063\u3066\u3044\u308b\u3068\u3057\u307e\u3059\u3002<\/b><\/span><\/p>\n<p><strong>=LN(A1) \u307e\u305f\u306f =LN(10) \u306e\u5834\u5408\uff1a<\/strong><\/p>\n<p>10\u306e\u81ea\u7136\u5bfe\u6570\u3092\u8a08\u7b97\u3057\u3001\u7d04\u300c2.302585\u300d\u3068\u3044\u3046\u5024\u3092\u8fd4\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001e^2.302585&#8230; \u2248 10 \u3068\u306a\u308b\u6570\u5024\u3067\u3059\u3002<\/p>\n<p>\uff08\u307e\u305f\u306f\u65e5\u672c\u8a9e\u3067\uff09\u3053\u308c\u306f\u3001e \u306e 2.302585 \u4e57\u306f\u7d04 10 \u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3059\u5024\u3067\u3059\u3002<\/p>\n<p>LN\u95a2\u6570\u306f\u3001\u6307\u5b9a\u3057\u305f\u6570\u5024\u304c\u6b63\u306e\u6570\u3067\u3042\u308b\u9650\u308a\u3001\u6b63\u3057\u304f\u81ea\u7136\u5bfe\u6570\u3092\u6c42\u3081\u307e\u3059\u3002<\/p>\n<h3>\u81ea\u7136\u5bfe\u6570\u3068\u306f\uff1f<\/h3>\n<p><span style=\"background-color: #ffff99;\"><b>\u5c11\u3057\u5c02\u9580\u7684\u306b\u306a\u308a\u307e\u3059\u304c\u3001\u81ea\u7136\u5bfe\u6570\u3068\u306f\u300c\u30cd\u30a4\u30d4\u30a2\u6570 e \u3092\u4f55\u4e57\u3057\u305f\u3089\u3001\u305d\u306e\u6570\u5024\u306b\u306a\u308b\u304b\u300d\u3092\u793a\u3059\u5024\u3067\u3059\u3002<\/b><\/span><\/p>\n<p>\u4f8b\u3048\u3070\u3001e^2 \u2248 7.389 \u306a\u306e\u3067\u3001=LN(7.389) \u306e\u7d50\u679c\u306f\u7d04 2 \u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\uff08\u307e\u305f\u306f\uff09\u4f8b\u3048\u3070\u3001e \u306e 2 \u4e57\u306f\u7d04 7.389 \u306a\u306e\u3067\u3001=LN(7.389) \u306e\u7d50\u679c\u306f\u7d04 2 \u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>LN\u95a2\u6570\u306f\u3001\u7279\u306b\u6210\u9577\u7387\u306e\u8a08\u7b97\u3084\u3001\u6307\u6570\u95a2\u6570\u7684\u306a\u6e1b\u8870\u3092\u4f34\u3046\u73fe\u8c61\u306e\u5206\u6790\u306a\u3069\u3067\u5229\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<h2>LN\u95a2\u6570\u306e\u5229\u7528\u30b7\u30fc\u30f3<\/h2>\n<p><span style=\"background-color: #ffff99;\"><b>LN\u95a2\u6570\u306f\u3001\u5358\u4f53\u3067\u5229\u7528\u3055\u308c\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u304c\u3001\u591a\u304f\u306e\u5834\u5408\u3001\u7279\u5b9a\u306e\u8a08\u7b97\u3084\u5206\u6790\u306e\u4e00\u90e8\u3068\u3057\u3066\u7d44\u307f\u8fbc\u307e\u308c\u307e\u3059\u3002<\/b><\/span>\u3053\u3053\u3067\u306f\u3001LN\u95a2\u6570\u304c\u3069\u306e\u3088\u3046\u306a\u5834\u9762\u3067\u5f79\u7acb\u3064\u306e\u304b\u3001\u5177\u4f53\u7684\u306a\u5229\u7528\u30b7\u30fc\u30f3\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>1. \u30c7\u30fc\u30bf\u306e\u6210\u9577\u7387\u3084\u6e1b\u8870\u7387\u306e\u5206\u6790<\/h3>\n<p><span style=\"background-color: #ffff99;\"><b>\u7d4c\u6e08\u6210\u9577\u3001\u4eba\u53e3\u5897\u52a0\u3001\u653e\u5c04\u6027\u7269\u8cea\u306e\u6e1b\u8870\u306a\u3069\u3001\u6642\u9593\u3068\u3068\u3082\u306b\u6307\u6570\u95a2\u6570\u7684\u306b\u5909\u5316\u3059\u308b\u30c7\u30fc\u30bf\u306e\u5206\u6790\u306bLN\u95a2\u6570\u304c\u7528\u3044\u3089\u308c\u307e\u3059\u3002<\/b><\/span><\/p>\n<p><strong>\u4f8b\uff1a\u5e74\u9593\u5e73\u5747\u6210\u9577\u7387\uff08CAGR\uff09\u306e\u8a08\u7b97<\/strong><\/p>\n<p>\u8907\u6570\u306e\u671f\u9593\u306b\u308f\u305f\u308b\u6210\u9577\u7387\u3092\u5e73\u5747\u5316\u3057\u3066\u7b97\u51fa\u3059\u308b\u969b\u306b\u3001LN\u95a2\u6570\u304c\u4f7f\u7528\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>CAGR=(\u671f\u672b\u5024\/\u671f\u9996\u5024)^(1\/\u5e74\u6570)\u22121<\/p>\n<p>\u3053\u306e\u5f0f\u3092LN\u95a2\u6570\u3092\u4f7f\u3063\u3066\u5909\u5f62\u3057\u3001\u7dda\u5f62\u56de\u5e30\u306a\u3069\u3067\u5206\u6790\u3057\u3084\u3059\u304f\u3059\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>2. \u7d71\u8a08\u89e3\u6790\u3084\u78ba\u7387\u5206\u5e03\u306e\u8a08\u7b97<\/h3>\n<p><span style=\"background-color: #ffff99;\"><b>\u6b63\u898f\u5206\u5e03\u3084\u5bfe\u6570\u6b63\u898f\u5206\u5e03\u3068\u3044\u3063\u305f\u78ba\u7387\u5206\u5e03\u306e\u8a08\u7b97\u306b\u304a\u3044\u3066\u3001LN\u95a2\u6570\u304c\u4f7f\u308f\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/b><\/span>\u7279\u306b\u3001\u30c7\u30fc\u30bf\u306e\u5bfe\u6570\u3092\u53d6\u308b\u3053\u3068\u3067\u3001\u30c7\u30fc\u30bf\u306e\u5206\u5e03\u3092\u6b63\u898f\u5206\u5e03\u306b\u8fd1\u3065\u3051\u3001\u7d71\u8a08\u7684\u306a\u5206\u6790\u3092\u884c\u3044\u3084\u3059\u304f\u3059\u308b\u300c\u5bfe\u6570\u5909\u63db\u300d\u306b\u3088\u304f\u5229\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><strong>\u4f8b\uff1a\u682a\u4fa1\u306e\u5909\u52d5\u7387\u3092\u5206\u6790\u3059\u308b\u969b\u306b\u3001\u65e5\u3005\u306e\u682a\u4fa1\u306e\u5bfe\u6570\u3092\u53d6\u308a\u3001\u305d\u306e\u5dee\u5206\u3092\u8a08\u7b97\u3057\u3066\u30ea\u30bf\u30fc\u30f3\u3092\u5206\u6790\u3059\u308b<\/strong><\/p>\n<p>\u3053\u308c\u306f\u91d1\u878d\u5de5\u5b66\u306e\u5206\u91ce\u3067\u3088\u304f\u7528\u3044\u3089\u308c\u308b\u624b\u6cd5\u3067\u3059\u3002<\/p>\n<h3>3. \u91d1\u878d\u5de5\u5b66\u306b\u304a\u3051\u308b\u30e2\u30c7\u30ea\u30f3\u30b0<\/h3>\n<p><span style=\"background-color: #ffff99;\"><b>\u30aa\u30d7\u30b7\u30e7\u30f3\u4fa1\u683c\u306e\u8a55\u4fa1\u30e2\u30c7\u30eb\uff08\u30d6\u30e9\u30c3\u30af-\u30b7\u30e7\u30fc\u30eb\u30ba\u30fb\u30e2\u30c7\u30eb\u306a\u3069\uff09\u3084\u3001\u30ea\u30b9\u30af\u7ba1\u7406\u306e\u8a08\u7b97\u3067\u3082\u3001LN\u95a2\u6570\u306f\u57fa\u790e\u7684\u306a\u8a08\u7b97\u306b\u4f7f\u308f\u308c\u307e\u3059\u3002<\/b><\/span><\/p>\n<p><strong>\u4f8b\uff1a\u30dc\u30e9\u30c6\u30a3\u30ea\u30c6\u30a3\uff08\u5909\u52d5\u7387\uff09\u306e\u8a08\u7b97<\/strong><\/p>\n<p>\u682a\u4fa1\u306e\u5bfe\u6570\u30ea\u30bf\u30fc\u30f3\u306e\u6a19\u6e96\u504f\u5dee\u3068\u3057\u3066\u30dc\u30e9\u30c6\u30a3\u30ea\u30c6\u30a3\u3092\u63a8\u5b9a\u3059\u308b\u969b\u306b\u5229\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<h3>4. \u79d1\u5b66\u6280\u8853\u8a08\u7b97<\/h3>\n<p><span style=\"background-color: #ffff99;\"><b>\u7269\u7406\u5b66\u3001\u5316\u5b66\u3001\u751f\u7269\u5b66\u306a\u3069\u306e\u5206\u91ce\u3067\u3001\u6307\u6570\u95a2\u6570\u7684\u306a\u95a2\u4fc2\u3092\u6301\u3064\u73fe\u8c61\u3092\u5206\u6790\u3059\u308b\u969b\u306b\u5229\u7528\u3055\u308c\u307e\u3059\u3002<\/b><\/span><\/p>\n<p><strong>\u4f8b\uff1apH\u5024\u306e\u8a08\u7b97\uff08\u53c2\u8003\uff09<\/strong><\/p>\n<p>pH\u306f\u6c34\u7d20\u30a4\u30aa\u30f3\u6fc3\u5ea6\u306e\u5e38\u7528\u5bfe\u6570\uff08\u5e9510\uff09\u3067\u5b9a\u7fa9\u3055\u308c\u308b\u305f\u3081\u3001Excel\u3067\u306f LN \u3067\u306f\u306a\u304f LOG10 \u95a2\u6570\u3092\u7528\u3044\u307e\u3059\u3002<\/p>\n<p>LN\u95a2\u6570\u306e\u5fdc\u7528\u4f8b\u3068\u3057\u3066\u306f\u3001\u4f8b\u3048\u3070\u6307\u6570\u6e1b\u8870\u306e\u5206\u6790\uff08\u534a\u6e1b\u671f t = LN(2) \/ \u03bb \u306e\u8a08\u7b97\uff09\u306a\u3069\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2>LN\u95a2\u6570\u306e\u5fdc\u7528\u30fb\u4ed6\u95a2\u6570\u3068\u306e\u7d44\u307f\u5408\u308f\u305b<\/h2>\n<p><span style=\"background-color: #ffff99;\"><b>LN\u95a2\u6570\u306f\u3001\u4ed6\u306e\u6570\u5b66\u95a2\u6570\u3084\u7d71\u8a08\u95a2\u6570\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u9ad8\u5ea6\u306a\u5206\u6790\u3084\u8a08\u7b97\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/b><\/span><\/p>\n<h3>1. EXP\u95a2\u6570\uff08\u81ea\u7136\u5bfe\u6570\u306e\u9006\u95a2\u6570\uff09\u3068\u306e\u7d44\u307f\u5408\u308f\u305b<\/h3>\n<p><span style=\"background-color: #ffff99;\"><b>EXP\u95a2\u6570\u306f\u3001\u30cd\u30a4\u30d4\u30a2\u6570 e \u3092\u6307\u5b9a\u3055\u308c\u305f\u6570\u5024\u3067\u7d2f\u4e57\u3059\u308b\u95a2\u6570\u3067\u3001LN\u95a2\u6570\u3068\u306f\u9006\u306e\u95a2\u4fc2\u306b\u3042\u308a\u307e\u3059\u3002<\/b><\/span><\/p>\n<p>=EXP(LN(\u6570\u5024)) \u306f\u3001<strong>\u6570\u5024\u304c\u6b63\uff08&gt;0\uff09<\/strong> \u306e\u5834\u5408\u306b\u5143\u306e\u300c\u6570\u5024\u300d\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n<p>=LN(EXP(\u6570\u5024)) \u306f\u4efb\u610f\u306e\u5b9f\u6570\u306e\u300c\u6570\u5024\u300d\u306b\u5bfe\u3057\u3066\u5143\u306e\u300c\u6570\u5024\u300d\u3092\u8fd4\u3057\u307e\u3059\uff08\u305f\u3060\u3057\u6975\u7aef\u306a\u5024\u3067\u306f\u6570\u5024\u8aa4\u5dee\u3084\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u306b\u6ce8\u610f\uff09\u3002<\/p>\n<p>\u3053\u306e\u7279\u6027\u3092\u5229\u7528\u3057\u3066\u3001\u6307\u6570\u95a2\u6570\u7684\u306a\u5897\u6e1b\u3092\u4f34\u3046\u30e2\u30c7\u30eb\u306e\u69cb\u7bc9\u3084\u3001\u5bfe\u6570\u5909\u63db\u3057\u305f\u30c7\u30fc\u30bf\u3092\u5143\u306e\u30b9\u30b1\u30fc\u30eb\u306b\u623b\u3059\u969b\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<h3>2. LOG\u95a2\u6570\uff08\u4efb\u610f\u306e\u5e95\u306e\u5bfe\u6570\uff09\u3068\u306e\u7d44\u307f\u5408\u308f\u305b<\/h3>\n<p><span style=\"background-color: #ffff99;\"><b>LN\u95a2\u6570\u306f\u81ea\u7136\u5bfe\u6570\uff08\u5e95\u304c e\uff09\u3067\u3059\u304c\u3001LOG\u95a2\u6570\u3092\u4f7f\u3048\u3070\u4efb\u610f\u306e\u5e95\u306e\u5bfe\u6570\u3092\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002<\/b><\/span><\/p>\n<p>=LOG(\u6570\u5024, \u5e95)<\/p>\n<p>LN\u95a2\u6570\u3092\u4f7f\u3063\u3066\u4efb\u610f\u306e\u5e95 b \u306e\u5bfe\u6570\u306f\u3001\u5e95\u306e\u5909\u63db\u516c\u5f0f\u3067\u8868\u305b\u307e\u3059\u3002<\/p>\n<p>log_b(x) = ln(x) \/ ln(b)\uff08Excel \u3067\u306f =LN(x)\/LN(b)\uff09<\/p>\n<p>\u4f8b\uff1a\u5e95\u304c10\u306e\u5bfe\u6570\u3092\u8a08\u7b97\u3059\u308b<\/p>\n<p>=LN(A1)\/LN(10) \u306f\u3001=LOG(A1, 10) \u3068\u540c\u3058\u7d50\u679c\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u5fdc\u7528\u306f\u3001\u5bfe\u6570\u5909\u63db\u304c\u5fc5\u8981\u306a\u5834\u9762\u3067\u3001\u5e95\u3092\u81ea\u7531\u306b\u5909\u3048\u305f\u3044\u5834\u5408\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<h3>3. SUMPRODUCT\u95a2\u6570\u3084\u914d\u5217\u6570\u5f0f\u3068\u306e\u7d44\u307f\u5408\u308f\u305b<\/h3>\n<p><span style=\"background-color: #ffff99;\"><b>\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u3092\u51e6\u7406\u3059\u308b\u969b\u3084\u3001\u7279\u5b9a\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3059\u30c7\u30fc\u30bf\u306e\u5bfe\u6570\u3092\u5408\u8a08\u3059\u308b\u3088\u3046\u306a\u8907\u96d1\u306a\u8a08\u7b97\u3067\u3001LN\u95a2\u6570\u3092SUMPRODUCT\u95a2\u6570\u3084\u914d\u5217\u6570\u5f0f\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/b><\/span><\/p>\n<p>\u4f8b\uff1a\u7279\u5b9a\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3059\u9805\u76ee\u306b\u3064\u3044\u3066\u3001\u305d\u306e\u6570\u5024\u306e\u81ea\u7136\u5bfe\u6570\u3092\u5408\u8a08\u3059\u308b<\/p>\n<p>=SUMPRODUCT(&#8211;(\u6761\u4ef6\u7bc4\u56f2=&#8221;\u6761\u4ef6&#8221;), LN(\u6570\u5024\u7bc4\u56f2)) \u306f <strong>\u901a\u5e38\u306e Enter \u3067\u78ba\u5b9a<\/strong> \u3067\u304d\u307e\u3059\uff08CSE \u4e0d\u8981\uff09\u3002<\/p>\n<p>\u6570\u5024\u7bc4\u56f2\u306b 0 \u4ee5\u4e0b\u304c\u542b\u307e\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u5834\u5408\u306f\u3001Microsoft 365 \u3067\u306f\u6b21\u306e\u3088\u3046\u306b\u6b63\u306e\u5024\u3060\u3051\u306b\u9650\u5b9a\u3059\u308b\u3068\u5b89\u5168\u3067\u3059\u3002<\/p>\n<p>=SUM(LN(FILTER(\u6570\u5024\u7bc4\u56f2, (\u6761\u4ef6\u7bc4\u56f2=&#8221;\u6761\u4ef6&#8221;)*(\u6570\u5024\u7bc4\u56f2&gt;0))))<\/p>\n<p>\uff08FILTER \u304c\u4f7f\u3048\u306a\u3044\u74b0\u5883\u3067\u306f\u3001\u4e8b\u524d\u306b 0 \u4ee5\u4e0b\u306e\u5024\u3092\u9664\u304f\u3001\u307e\u305f\u306f IFERROR \u3067\u9664\u5916\u3059\u308b\u306a\u3069\u306e\u5bfe\u7b56\u3092\u3057\u3066\u304f\u3060\u3055\u3044\u3002\uff09<\/p>\n<h2>LN\u95a2\u6570\u306e\u3088\u304f\u3042\u308b\u30a8\u30e9\u30fc\u3068\u5bfe\u7b56<\/h2>\n<p><span style=\"background-color: #ffff99;\"><b>LN\u95a2\u6570\u306f\u6bd4\u8f03\u7684\u30b7\u30f3\u30d7\u30eb\u306a\u95a2\u6570\u3067\u3059\u304c\u3001\u4f7f\u7528\u3059\u308b\u969b\u306b\u6ce8\u610f\u3059\u3079\u304d\u70b9\u304c\u3042\u308a\u307e\u3059\u3002<\/b><\/span>\u7279\u306b\u5f15\u6570\u306b\u95a2\u3059\u308b\u30a8\u30e9\u30fc\u304c\u3088\u304f\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n<h3>1. #NUM! \u30a8\u30e9\u30fc<\/h3>\n<p><span style=\"background-color: #ffff99;\"><b>\u3053\u306e\u30a8\u30e9\u30fc\u306f\u3001LN\u95a2\u6570\u306b\u300c\u8ca0\u306e\u6570\u300d\u307e\u305f\u306f\u300c\u30bc\u30ed\u300d\u3092\u5f15\u6570\u3068\u3057\u3066\u4e0e\u3048\u305f\u5834\u5408\u306b\u767a\u751f\u3057\u307e\u3059\u3002<\/b><\/span><\/p>\n<p>\u81ea\u7136\u5bfe\u6570\u306f\u3001\u771f\u6570\u304c\u6b63\u306e\u6570\u3067\u3042\u308b\u5834\u5408\u306b\u306e\u307f\u5b9a\u7fa9\u3055\u308c\u308b\u305f\u3081\u3001\u8ca0\u306e\u6570\u3084\u30bc\u30ed\u306e\u5bfe\u6570\u306f\u5b58\u5728\u3057\u307e\u305b\u3093\u3002<\/p>\n<div class=\"summary-box\">\n<div class=\"summary-box__title\"><span class=\"summary-box__title_tag\"><strong>\u8aa4\u3063\u305f\u4f8b<\/strong><\/span><\/div>\n<ul class=\"summary-box__list summary-box__list\">\n<li>=LN(-5)<\/li>\n<li>=LN(0)<\/li>\n<\/ul>\n<\/div>\n<p><strong>\u5bfe\u7b56<\/strong>\uff1a<\/p>\n<p>LN\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u969b\u306f\u3001\u5fc5\u305a\u5f15\u6570\u306b\u6b63\u306e\u6570\u3092\u6307\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u3082\u3057\u3001\u8a08\u7b97\u7d50\u679c\u304c\u8ca0\u306b\u306a\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u30bb\u30eb\u3084\u3001\u30bc\u30ed\u306b\u306a\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u30bb\u30eb\u3092\u53c2\u7167\u3059\u308b\u5834\u5408\u306f\u3001IF\u95a2\u6570\u3084MAX\u95a2\u6570\u306a\u3069\u3092\u7528\u3044\u3066\u3001\u5f15\u6570\u304c\u6b63\u306e\u5024\u306b\u306a\u308b\u3088\u3046\u306b\u8abf\u6574\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u4f8b\uff1a\u8ca0\u306e\u5024\u3084\u30bc\u30ed\u306e\u5834\u5408\u306f\u8a08\u7b97\u305b\u305a\u306b\u7a7a\u6b04\u306b\u3059\u308b<\/p>\n<p>=IF(A1&gt;0, LN(A1), &#8220;&#8221;)<\/p>\n<p>\u4f8b\uff1a\u8ca0\u306e\u5024\u3084\u30bc\u30ed\u306e\u5834\u5408\u3067\u3082\u6700\u5c0f\u5024\u3092\u4fdd\u8a3c\u3059\u308b<\/p>\n<p>=LN(MAX(A1, 0.0000000001))\uff08\u975e\u5e38\u306b\u5c0f\u3055\u306a\u6b63\u306e\u6570\u3092 <strong>\u4e0b\u9650\u3068\u3057\u3066\u8a2d\u5b9a<\/strong> \u3057\u3066\u30a8\u30e9\u30fc\u3092\u56de\u907f\uff09<\/p>\n<p>\uff08\u6ce8\uff1a\u3053\u306e\u65b9\u6cd5\u306f\u8ca0\u5024\u3084 0 \u3092\u5c0f\u3055\u306a\u6b63\u306e\u5024\u306b\u7f6e\u304d\u63db\u3048\u308b\u305f\u3081\u3001\u7d71\u8a08\u5206\u6790\u3067\u306f\u30d0\u30a4\u30a2\u30b9\u304c\u751f\u3058\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u53ef\u80fd\u306a\u3089 =IF(A1&gt;0, LN(A1), &#8220;&#8221;) \u306a\u3069\u3067\u9664\u5916\u3059\u308b\u65b9\u6cd5\u3082\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002\uff09<\/p>\n<h3>2. #VALUE! \u30a8\u30e9\u30fc<\/h3>\n<p><span style=\"background-color: #ffff99;\"><b>\u3053\u306e\u30a8\u30e9\u30fc\u306f\u3001LN\u95a2\u6570\u306b\u300c\u6570\u5024\u3068\u3057\u3066\u8a8d\u8b58\u3067\u304d\u306a\u3044\u6587\u5b57\u5217\u300d\u3092\u5f15\u6570\u3068\u3057\u3066\u4e0e\u3048\u305f\u5834\u5408\u306b\u767a\u751f\u3057\u307e\u3059\u3002<\/b><\/span><\/p>\n<div class=\"summary-box\">\n<div class=\"summary-box__title\"><span class=\"summary-box__title_tag\"><strong>\u8aa4\u3063\u305f\u4f8b<\/strong><\/span><\/div>\n<ul class=\"summary-box__list summary-box__list\">\n<li>=LN(&#8220;abc&#8221;) (\u6587\u5b57\u5217\u3092\u76f4\u63a5\u6307\u5b9a)<\/li>\n<li>A1\u30bb\u30eb\u306b\u300c\u30c7\u30fc\u30bf\u306a\u3057\u300d\u306e\u3088\u3046\u306a\u6587\u5b57\u5217\u304c\u5165\u3063\u3066\u3044\u308b\u72b6\u614b\u3067 =LN(A1)<\/li>\n<\/ul>\n<\/div>\n<p><strong>\u5bfe\u7b56<\/strong>\uff1a<\/p>\n<p>LN\u95a2\u6570\u306e\u5f15\u6570\u306b\u306f\u3001\u5fc5\u305a\u6570\u5024\u3001\u307e\u305f\u306f\u6570\u5024\u306b\u5909\u63db\u3067\u304d\u308b\u30bb\u30eb\u53c2\u7167\u3092\u6307\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u3082\u3057\u3001\u53c2\u7167\u3059\u308b\u30bb\u30eb\u306b\u6570\u5024\u4ee5\u5916\u306e\u30c7\u30fc\u30bf\u304c\u542b\u307e\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u5834\u5408\u306f\u3001ISNUMBER\u95a2\u6570\u3067\u6570\u5024\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u305f\u308a\u3001IFERROR\u95a2\u6570\u3067\u30a8\u30e9\u30fc\u51e6\u7406\u3092\u884c\u3046\u3053\u3068\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u4f8b\uff1a\u53c2\u7167\u30bb\u30eb\u304c\u6570\u5024\u3067\u306a\u3051\u308c\u3070\u30a8\u30e9\u30fc\u8868\u793a\u3092\u56de\u907f\uff08\u304b\u3064 0 \u3088\u308a\u5927\u304d\u3044\u3068\u304d\u306e\u307f\u8a08\u7b97\uff09<\/p>\n<p>=IF(ISNUMBER(A1), IF(A1&gt;0, LN(A1), &#8220;0\u3088\u308a\u5927\u304d\u3044\u6570\u304c\u5fc5\u8981\u3067\u3059&#8221;), &#8220;\u6570\u5024\u3067\u306f\u3042\u308a\u307e\u305b\u3093&#8221;)<\/p>\n<p>\uff08\u6570\u5024\u6587\u5b57\u5217\u3092\u6271\u3046\u5834\u5408\u306f VALUE\/NUMBERVALUE \u3067\u6570\u5024\u5316\u3057\u3066\u304b\u3089\u5224\u5b9a\u3059\u308b\u3068\u78ba\u5b9f\u3067\u3059\u3002\uff09<\/p>\n<h2>\u81ea\u7136\u5bfe\u6570\u306e\u8a08\u7b97\u3092LN\u95a2\u6570\u3067\u624b\u8efd\u306b<\/h2>\n<p>LN\u95a2\u6570\u306f\u3001\u30cd\u30a4\u30d4\u30a2\u6570e\u3092\u5e95\u3068\u3057\u305f\u81ea\u7136\u5bfe\u6570\u3092\u6c42\u3081\u308b\u95a2\u6570\u3067\u3001Excel\u306b\u304a\u3051\u308b\u6307\u6570\u95a2\u6570\u306e\u9006\u6f14\u7b97\u3068\u3057\u3066\u5e45\u5e83\u304f\u6d3b\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u6210\u9577\u7387\u3084\u6e1b\u8870\u7387\u306e\u5206\u6790\u3001\u7d71\u8a08\u51e6\u7406\u3001\u91d1\u878d\u30e2\u30c7\u30ea\u30f3\u30b0\u3001\u79d1\u5b66\u8a08\u7b97\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u5206\u91ce\u3067\u57fa\u672c\u7684\u306a\u5f79\u5272\u3092\u62c5\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001LN\u95a2\u6570\u306e\u57fa\u672c\u69cb\u6587\u3084\u4f7f\u7528\u4f8b\u306b\u52a0\u3048\u3001EXP\u95a2\u6570\u3084LOG\u95a2\u6570\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u306b\u3088\u308b\u5fdc\u7528\u3001SUMPRODUCT\u3084\u914d\u5217\u6570\u5f0f\u3068\u306e\u9023\u643a\u306b\u3088\u308b\u9ad8\u5ea6\u306a\u8a08\u7b97\u624b\u6cd5\u3082\u7d39\u4ecb\u3057\u307e\u3057\u305f\u3002\u307e\u305f\u3001#NUM!\u30a8\u30e9\u30fc\u3084#VALUE!\u30a8\u30e9\u30fc\u306e\u539f\u56e0\u3068\u5bfe\u7b56\u3082\u53d6\u308a\u4e0a\u3052\u3001\u5b9f\u52d9\u3067\u3064\u307e\u305a\u304d\u3084\u3059\u3044\u30dd\u30a4\u30f3\u30c8\u3078\u306e\u5bfe\u51e6\u6cd5\u3082\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>LN\u95a2\u6570\u3092\u6b63\u3057\u304f\u7406\u89e3\u3057\u3001\u4ed6\u306e\u95a2\u6570\u3068\u3046\u307e\u304f\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u7cbe\u5ea6\u306e\u9ad8\u3044\u6570\u5024\u5206\u6790\u3084\u30e2\u30c7\u30eb\u69cb\u7bc9\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002\u305c\u3072\u65e5\u3005\u306e\u696d\u52d9\u3084\u5b66\u7fd2\u306b\u53d6\u308a\u5165\u308c\u3001\u30c7\u30fc\u30bf\u306b\u57fa\u3065\u304f\u5224\u65ad\u3084\u4e88\u6e2c\u306b\u5f79\u7acb\u3066\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30a8\u30af\u30bb\u30eb\u3067\u6570\u5b66\u7684\u306a\u8a08\u7b97\u3092\u884c\u3046\u969b\u3001\u81ea\u7136\u5bfe\u6570\u3092\u6c42\u3081\u305f\u3044\u3068\u601d\u3063\u305f\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u304b\uff1f\u300cLN\u95a2\u6570\u300d\u306f\u3001\u81ea\u7136\u5bfe\u6570\u3092\u624b\u8efd\u306b\u6c42\u3081\u3089\u308c\u308b\u95a2\u6570\u3067\u3059\u3002\u81ea\u7136\u5bfe\u6570\u306f\u3001\u79d1\u5b66\u3084\u91d1\u878d\u3001\u7d71\u8a08\u306a\u3069\u306e\u5206\u91ce\u3067\u3088\u304f\u4f7f\u308f\u308c\u307e\u3059\u3002 \u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u30a8\u30af\u30bb\u30eb\u521d\u5fc3\u8005\u306e\u65b9 [&hellip;]<\/p>\n","protected":false},"author":25,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[51],"tags":[],"class_list":["post-18073","post","type-post","status-publish","format-standard","hentry","category-excel"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/biz.moneyforward.com\/work-efficiency\/basic\/wp-json\/wp\/v2\/posts\/18073","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/biz.moneyforward.com\/work-efficiency\/basic\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/biz.moneyforward.com\/work-efficiency\/basic\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/biz.moneyforward.com\/work-efficiency\/basic\/wp-json\/wp\/v2\/users\/25"}],"replies":[{"embeddable":true,"href":"https:\/\/biz.moneyforward.com\/work-efficiency\/basic\/wp-json\/wp\/v2\/comments?post=18073"}],"version-history":[{"count":9,"href":"https:\/\/biz.moneyforward.com\/work-efficiency\/basic\/wp-json\/wp\/v2\/posts\/18073\/revisions"}],"predecessor-version":[{"id":18607,"href":"https:\/\/biz.moneyforward.com\/work-efficiency\/basic\/wp-json\/wp\/v2\/posts\/18073\/revisions\/18607"}],"wp:attachment":[{"href":"https:\/\/biz.moneyforward.com\/work-efficiency\/basic\/wp-json\/wp\/v2\/media?parent=18073"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/biz.moneyforward.com\/work-efficiency\/basic\/wp-json\/wp\/v2\/categories?post=18073"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/biz.moneyforward.com\/work-efficiency\/basic\/wp-json\/wp\/v2\/tags?post=18073"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}