87280450

素因数分解:

$2^1\times 5^2\times {\mathrm{397}}^1\times {\mathrm{4397}}^1$

素因数の和:4806

約数の個数: 24

約数和(自身を含む): 162787572

約数和(自身を除く): 75507122

約数列:

[1, 2, 5, 10, 25, 50, 397, 794, 1985, 3970, 4397, 8794, 9925, 19850, 21985, 43970, 109925, 219850, 1745609, 3491218, 8728045, 17456090, 43640225, 87280450]

約数ペア:

[(1, 87280450), (2, 43640225), (5, 17456090), (10, 8728045), (25, 3491218), (50, 1745609), (397, 219850), (794, 109925), (1985, 43970), (3970, 21985), (4397, 19850), (8794, 9925)]