12510220

素因数分解:

$2^2\times 5^1\times {\mathrm{557}}^1\times {\mathrm{1123}}^1$

素因数の和:1689

約数の個数: 24

約数和(自身を含む): 26342064

約数和(自身を除く): 13831844

約数列:

[1, 2, 4, 5, 10, 20, 557, 1114, 1123, 2228, 2246, 2785, 4492, 5570, 5615, 11140, 11230, 22460, 625511, 1251022, 2502044, 3127555, 6255110, 12510220]

約数ペア:

[(1, 12510220), (2, 6255110), (4, 3127555), (5, 2502044), (10, 1251022), (20, 625511), (557, 22460), (1114, 11230), (1123, 11140), (2228, 5615), (2246, 5570), (2785, 4492)]