676494920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{393311}}^1$

素因数の和:393365

約数の個数: 32

約数和(自身を含む): 1557515520

約数和(自身を除く): 881020600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 393311, 786622, 1573244, 1966555, 3146488, 3933110, 7866220, 15732440, 16912373, 33824746, 67649492, 84561865, 135298984, 169123730, 338247460, 676494920]

約数ペア:

[(1, 676494920), (2, 338247460), (4, 169123730), (5, 135298984), (8, 84561865), (10, 67649492), (20, 33824746), (40, 16912373), (43, 15732440), (86, 7866220), (172, 3933110), (215, 3146488), (344, 1966555), (430, 1573244), (860, 786622), (1720, 393311)]