25528040

素因数分解:

$2^3\times 5^1\times {\mathrm{638201}}^1$

素因数の和:638212

約数の個数: 16

約数和(自身を含む): 57438180

約数和(自身を除く): 31910140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 638201, 1276402, 2552804, 3191005, 5105608, 6382010, 12764020, 25528040]

約数ペア:

[(1, 25528040), (2, 12764020), (4, 6382010), (5, 5105608), (8, 3191005), (10, 2552804), (20, 1276402), (40, 638201)]