7744339940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{443}}^1\times {\mathrm{21319}}^1$

素因数の和:21812

約数の個数: 48

約数和(自身を含む): 16698165120

約数和(自身を除く): 8953825180

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 443, 820, 886, 1772, 2215, 4430, 8860, 18163, 21319, 36326, 42638, 72652, 85276, 90815, 106595, 181630, 213190, 363260, 426380, 874079, 1748158, 3496316, 4370395, 8740790, 9444317, 17481580, 18888634, 37777268, 47221585, 94443170, 188886340, 387216997, 774433994, 1548867988, 1936084985, 3872169970, 7744339940]

約数ペア:

[(1, 7744339940), (2, 3872169970), (4, 1936084985), (5, 1548867988), (10, 774433994), (20, 387216997), (41, 188886340), (82, 94443170), (164, 47221585), (205, 37777268), (410, 18888634), (443, 17481580), (820, 9444317), (886, 8740790), (1772, 4370395), (2215, 3496316), (4430, 1748158), (8860, 874079), (18163, 426380), (21319, 363260), (36326, 213190), (42638, 181630), (72652, 106595), (85276, 90815)]