28123100

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:335

約数の個数: 72

約数和(自身を含む): 65808288

約数和(自身を除く): 37685188

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 71, 85, 100, 142, 170, 233, 284, 340, 355, 425, 466, 710, 850, 932, 1165, 1207, 1420, 1700, 1775, 2330, 2414, 3550, 3961, 4660, 4828, 5825, 6035, 7100, 7922, 11650, 12070, 15844, 16543, 19805, 23300, 24140, 30175, 33086, 39610, 60350, 66172, 79220, 82715, 99025, 120700, 165430, 198050, 281231, 330860, 396100, 413575, 562462, 827150, 1124924, 1406155, 1654300, 2812310, 5624620, 7030775, 14061550, 28123100]

約数ペア:

[(1, 28123100), (2, 14061550), (4, 7030775), (5, 5624620), (10, 2812310), (17, 1654300), (20, 1406155), (25, 1124924), (34, 827150), (50, 562462), (68, 413575), (71, 396100), (85, 330860), (100, 281231), (142, 198050), (170, 165430), (233, 120700), (284, 99025), (340, 82715), (355, 79220), (425, 66172), (466, 60350), (710, 39610), (850, 33086), (932, 30175), (1165, 24140), (1207, 23300), (1420, 19805), (1700, 16543), (1775, 15844), (2330, 12070), (2414, 11650), (3550, 7922), (3961, 7100), (4660, 6035), (4828, 5825)]