20145720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{827}}^1$

素因数の和:877

約数の個数: 128

約数和(自身を含む): 71539200

約数和(自身を除く): 51393480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 29, 30, 35, 40, 42, 56, 58, 60, 70, 84, 87, 105, 116, 120, 140, 145, 168, 174, 203, 210, 232, 280, 290, 348, 406, 420, 435, 580, 609, 696, 812, 827, 840, 870, 1015, 1160, 1218, 1624, 1654, 1740, 2030, 2436, 2481, 3045, 3308, 3480, 4060, 4135, 4872, 4962, 5789, 6090, 6616, 8120, 8270, 9924, 11578, 12180, 12405, 16540, 17367, 19848, 23156, 23983, 24360, 24810, 28945, 33080, 34734, 46312, 47966, 49620, 57890, 69468, 71949, 86835, 95932, 99240, 115780, 119915, 138936, 143898, 167881, 173670, 191864, 231560, 239830, 287796, 335762, 347340, 359745, 479660, 503643, 575592, 671524, 694680, 719490, 839405, 959320, 1007286, 1343048, 1438980, 1678810, 2014572, 2518215, 2877960, 3357620, 4029144, 5036430, 6715240, 10072860, 20145720]

約数ペア:

[(1, 20145720), (2, 10072860), (3, 6715240), (4, 5036430), (5, 4029144), (6, 3357620), (7, 2877960), (8, 2518215), (10, 2014572), (12, 1678810), (14, 1438980), (15, 1343048), (20, 1007286), (21, 959320), (24, 839405), (28, 719490), (29, 694680), (30, 671524), (35, 575592), (40, 503643), (42, 479660), (56, 359745), (58, 347340), (60, 335762), (70, 287796), (84, 239830), (87, 231560), (105, 191864), (116, 173670), (120, 167881), (140, 143898), (145, 138936), (168, 119915), (174, 115780), (203, 99240), (210, 95932), (232, 86835), (280, 71949), (290, 69468), (348, 57890), (406, 49620), (420, 47966), (435, 46312), (580, 34734), (609, 33080), (696, 28945), (812, 24810), (827, 24360), (840, 23983), (870, 23156), (1015, 19848), (1160, 17367), (1218, 16540), (1624, 12405), (1654, 12180), (1740, 11578), (2030, 9924), (2436, 8270), (2481, 8120), (3045, 6616), (3308, 6090), (3480, 5789), (4060, 4962), (4135, 4872)]