389611640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{941}}^2$

素因数の和:1904

約数の個数: 48

約数和(自身を含む): 957336840

約数和(自身を除く): 567725200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 941, 1882, 3764, 4705, 7528, 9410, 10351, 18820, 20702, 37640, 41404, 51755, 82808, 103510, 207020, 414040, 885481, 1770962, 3541924, 4427405, 7083848, 8854810, 9740291, 17709620, 19480582, 35419240, 38961164, 48701455, 77922328, 97402910, 194805820, 389611640]

約数ペア:

[(1, 389611640), (2, 194805820), (4, 97402910), (5, 77922328), (8, 48701455), (10, 38961164), (11, 35419240), (20, 19480582), (22, 17709620), (40, 9740291), (44, 8854810), (55, 7083848), (88, 4427405), (110, 3541924), (220, 1770962), (440, 885481), (941, 414040), (1882, 207020), (3764, 103510), (4705, 82808), (7528, 51755), (9410, 41404), (10351, 37640), (18820, 20702)]