7777640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{14957}}^1$

素因数の和:14981

約数の個数: 32

約数和(自身を含む): 18847080

約数和(自身を除く): 11069440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 14957, 29914, 59828, 74785, 119656, 149570, 194441, 299140, 388882, 598280, 777764, 972205, 1555528, 1944410, 3888820, 7777640]

約数ペア:

[(1, 7777640), (2, 3888820), (4, 1944410), (5, 1555528), (8, 972205), (10, 777764), (13, 598280), (20, 388882), (26, 299140), (40, 194441), (52, 149570), (65, 119656), (104, 74785), (130, 59828), (260, 29914), (520, 14957)]