320139950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{492523}}^1$

素因数の和:492548

約数の個数: 24

約数和(自身を含む): 641266248

約数和(自身を除く): 321126298

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 492523, 985046, 2462615, 4925230, 6402799, 12313075, 12805598, 24626150, 32013995, 64027990, 160069975, 320139950]

約数ペア:

[(1, 320139950), (2, 160069975), (5, 64027990), (10, 32013995), (13, 24626150), (25, 12805598), (26, 12313075), (50, 6402799), (65, 4925230), (130, 2462615), (325, 985046), (650, 492523)]