639414730

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{14437}}^1$

素因数の和:14590

約数の個数: 32

約数和(自身を含む): 1189229184

約数和(自身を除く): 549814454

約数列:

[1, 2, 5, 10, 43, 86, 103, 206, 215, 430, 515, 1030, 4429, 8858, 14437, 22145, 28874, 44290, 72185, 144370, 620791, 1241582, 1487011, 2974022, 3103955, 6207910, 7435055, 14870110, 63941473, 127882946, 319707365, 639414730]

約数ペア:

[(1, 639414730), (2, 319707365), (5, 127882946), (10, 63941473), (43, 14870110), (86, 7435055), (103, 6207910), (206, 3103955), (215, 2974022), (430, 1487011), (515, 1241582), (1030, 620791), (4429, 144370), (8858, 72185), (14437, 44290), (22145, 28874)]