56566640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{499}}^1$

素因数の和:634

約数の個数: 80

約数和(自身を含む): 143220000

約数和(自身を除く): 86653360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 109, 130, 208, 218, 260, 436, 499, 520, 545, 872, 998, 1040, 1090, 1417, 1744, 1996, 2180, 2495, 2834, 3992, 4360, 4990, 5668, 6487, 7085, 7984, 8720, 9980, 11336, 12974, 14170, 19960, 22672, 25948, 28340, 32435, 39920, 51896, 54391, 56680, 64870, 103792, 108782, 113360, 129740, 217564, 259480, 271955, 435128, 518960, 543910, 707083, 870256, 1087820, 1414166, 2175640, 2828332, 3535415, 4351280, 5656664, 7070830, 11313328, 14141660, 28283320, 56566640]

約数ペア:

[(1, 56566640), (2, 28283320), (4, 14141660), (5, 11313328), (8, 7070830), (10, 5656664), (13, 4351280), (16, 3535415), (20, 2828332), (26, 2175640), (40, 1414166), (52, 1087820), (65, 870256), (80, 707083), (104, 543910), (109, 518960), (130, 435128), (208, 271955), (218, 259480), (260, 217564), (436, 129740), (499, 113360), (520, 108782), (545, 103792), (872, 64870), (998, 56680), (1040, 54391), (1090, 51896), (1417, 39920), (1744, 32435), (1996, 28340), (2180, 25948), (2495, 22672), (2834, 19960), (3992, 14170), (4360, 12974), (4990, 11336), (5668, 9980), (6487, 8720), (7085, 7984)]