12966850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19949}}^1$

素因数の和:19974

約数の個数: 24

約数和(自身を含む): 25974900

約数和(自身を除く): 13008050

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 19949, 39898, 99745, 199490, 259337, 498725, 518674, 997450, 1296685, 2593370, 6483425, 12966850]

約数ペア:

[(1, 12966850), (2, 6483425), (5, 2593370), (10, 1296685), (13, 997450), (25, 518674), (26, 498725), (50, 259337), (65, 199490), (130, 99745), (325, 39898), (650, 19949)]