39279640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{557}}^1$

素因数の和:652

約数の個数: 64

約数和(自身を含む): 92806560

約数和(自身を除く): 53526920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 43, 82, 86, 164, 172, 205, 215, 328, 344, 410, 430, 557, 820, 860, 1114, 1640, 1720, 1763, 2228, 2785, 3526, 4456, 5570, 7052, 8815, 11140, 14104, 17630, 22280, 22837, 23951, 35260, 45674, 47902, 70520, 91348, 95804, 114185, 119755, 182696, 191608, 228370, 239510, 456740, 479020, 913480, 958040, 981991, 1963982, 3927964, 4909955, 7855928, 9819910, 19639820, 39279640]

約数ペア:

[(1, 39279640), (2, 19639820), (4, 9819910), (5, 7855928), (8, 4909955), (10, 3927964), (20, 1963982), (40, 981991), (41, 958040), (43, 913480), (82, 479020), (86, 456740), (164, 239510), (172, 228370), (205, 191608), (215, 182696), (328, 119755), (344, 114185), (410, 95804), (430, 91348), (557, 70520), (820, 47902), (860, 45674), (1114, 35260), (1640, 23951), (1720, 22837), (1763, 22280), (2228, 17630), (2785, 14104), (3526, 11140), (4456, 8815), (5570, 7052)]