39996560

素因数分解:

$2^4\times 5^1\times {\mathrm{499957}}^1$

素因数の和:499970

約数の個数: 20

約数和(自身を含む): 92992188

約数和(自身を除く): 52995628

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 499957, 999914, 1999828, 2499785, 3999656, 4999570, 7999312, 9999140, 19998280, 39996560]

約数ペア:

[(1, 39996560), (2, 19998280), (4, 9999140), (5, 7999312), (8, 4999570), (10, 3999656), (16, 2499785), (20, 1999828), (40, 999914), (80, 499957)]