8321980

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1741}}^1$

素因数の和:1989

約数の個数: 24

約数和(自身を含む): 17559360

約数和(自身を除く): 9237380

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 1741, 2390, 3482, 4780, 6964, 8705, 17410, 34820, 416099, 832198, 1664396, 2080495, 4160990, 8321980]

約数ペア:

[(1, 8321980), (2, 4160990), (4, 2080495), (5, 1664396), (10, 832198), (20, 416099), (239, 34820), (478, 17410), (956, 8705), (1195, 6964), (1741, 4780), (2390, 3482)]