16147640

素因数分解:

$2^3\times 5^1\times {\mathrm{499}}^1\times {\mathrm{809}}^1$

素因数の和:1319

約数の個数: 32

約数和(自身を含む): 36450000

約数和(自身を除く): 20302360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 499, 809, 998, 1618, 1996, 2495, 3236, 3992, 4045, 4990, 6472, 8090, 9980, 16180, 19960, 32360, 403691, 807382, 1614764, 2018455, 3229528, 4036910, 8073820, 16147640]

約数ペア:

[(1, 16147640), (2, 8073820), (4, 4036910), (5, 3229528), (8, 2018455), (10, 1614764), (20, 807382), (40, 403691), (499, 32360), (809, 19960), (998, 16180), (1618, 9980), (1996, 8090), (2495, 6472), (3236, 4990), (3992, 4045)]