20464976

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{163}}^1$

素因数の和:256

約数の個数: 80

約数和(自身を含む): 48806400

約数和(自身を除く): 28341424

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 59, 76, 112, 118, 133, 152, 163, 236, 266, 304, 326, 413, 472, 532, 652, 826, 944, 1064, 1121, 1141, 1304, 1652, 2128, 2242, 2282, 2608, 3097, 3304, 4484, 4564, 6194, 6608, 7847, 8968, 9128, 9617, 12388, 15694, 17936, 18256, 19234, 21679, 24776, 31388, 38468, 43358, 49552, 62776, 67319, 76936, 86716, 125552, 134638, 153872, 173432, 182723, 269276, 346864, 365446, 538552, 730892, 1077104, 1279061, 1461784, 2558122, 2923568, 5116244, 10232488, 20464976]

約数ペア:

[(1, 20464976), (2, 10232488), (4, 5116244), (7, 2923568), (8, 2558122), (14, 1461784), (16, 1279061), (19, 1077104), (28, 730892), (38, 538552), (56, 365446), (59, 346864), (76, 269276), (112, 182723), (118, 173432), (133, 153872), (152, 134638), (163, 125552), (236, 86716), (266, 76936), (304, 67319), (326, 62776), (413, 49552), (472, 43358), (532, 38468), (652, 31388), (826, 24776), (944, 21679), (1064, 19234), (1121, 18256), (1141, 17936), (1304, 15694), (1652, 12388), (2128, 9617), (2242, 9128), (2282, 8968), (2608, 7847), (3097, 6608), (3304, 6194), (4484, 4564)]