81316920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{3917}}^1$

素因数の和:4104

約数の個数: 64

約数和(自身を含む): 245423520

約数和(自身を除く): 164106600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 173, 346, 519, 692, 865, 1038, 1384, 1730, 2076, 2595, 3460, 3917, 4152, 5190, 6920, 7834, 10380, 11751, 15668, 19585, 20760, 23502, 31336, 39170, 47004, 58755, 78340, 94008, 117510, 156680, 235020, 470040, 677641, 1355282, 2032923, 2710564, 3388205, 4065846, 5421128, 6776410, 8131692, 10164615, 13552820, 16263384, 20329230, 27105640, 40658460, 81316920]

約数ペア:

[(1, 81316920), (2, 40658460), (3, 27105640), (4, 20329230), (5, 16263384), (6, 13552820), (8, 10164615), (10, 8131692), (12, 6776410), (15, 5421128), (20, 4065846), (24, 3388205), (30, 2710564), (40, 2032923), (60, 1355282), (120, 677641), (173, 470040), (346, 235020), (519, 156680), (692, 117510), (865, 94008), (1038, 78340), (1384, 58755), (1730, 47004), (2076, 39170), (2595, 31336), (3460, 23502), (3917, 20760), (4152, 19585), (5190, 15668), (6920, 11751), (7834, 10380)]