984982160

素因数分解:

$2^4\times 5^1\times {\mathrm{12312277}}^1$

素因数の和:12312290

約数の個数: 20

約数和(自身を含む): 2290083708

約数和(自身を除く): 1305101548

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 12312277, 24624554, 49249108, 61561385, 98498216, 123122770, 196996432, 246245540, 492491080, 984982160]

約数ペア:

[(1, 984982160), (2, 492491080), (4, 246245540), (5, 196996432), (8, 123122770), (10, 98498216), (16, 61561385), (20, 49249108), (40, 24624554), (80, 12312277)]