18420407680

素因数分解:

$2^7\times 5^1\times {\mathrm{4463}}^1\times {\mathrm{6449}}^1$

素因数の和:10931

約数の個数: 64

約数和(自身を含む): 44052984000

約数和(自身を除く): 25632576320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 4463, 6449, 8926, 12898, 17852, 22315, 25796, 32245, 35704, 44630, 51592, 64490, 71408, 89260, 103184, 128980, 142816, 178520, 206368, 257960, 285632, 357040, 412736, 515920, 571264, 714080, 825472, 1031840, 1428160, 2063680, 2856320, 4127360, 28781887, 57563774, 115127548, 143909435, 230255096, 287818870, 460510192, 575637740, 921020384, 1151275480, 1842040768, 2302550960, 3684081536, 4605101920, 9210203840, 18420407680]

約数ペア:

[(1, 18420407680), (2, 9210203840), (4, 4605101920), (5, 3684081536), (8, 2302550960), (10, 1842040768), (16, 1151275480), (20, 921020384), (32, 575637740), (40, 460510192), (64, 287818870), (80, 230255096), (128, 143909435), (160, 115127548), (320, 57563774), (640, 28781887), (4463, 4127360), (6449, 2856320), (8926, 2063680), (12898, 1428160), (17852, 1031840), (22315, 825472), (25796, 714080), (32245, 571264), (35704, 515920), (44630, 412736), (51592, 357040), (64490, 285632), (71408, 257960), (89260, 206368), (103184, 178520), (128980, 142816)]