12409960

素因数分解:

$2^3\times 5^1\times {\mathrm{557}}^2$

素因数の和:1125

約数の個数: 24

約数和(自身を含む): 27972630

約数和(自身を除く): 15562670

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 557, 1114, 2228, 2785, 4456, 5570, 11140, 22280, 310249, 620498, 1240996, 1551245, 2481992, 3102490, 6204980, 12409960]

約数ペア:

[(1, 12409960), (2, 6204980), (4, 3102490), (5, 2481992), (8, 1551245), (10, 1240996), (20, 620498), (40, 310249), (557, 22280), (1114, 11140), (2228, 5570), (2785, 4456)]