31124560

素因数分解:

$2^4\times 5^1\times {\mathrm{389057}}^1$

素因数の和:389070

約数の個数: 20

約数和(自身を含む): 72364788

約数和(自身を除く): 41240228

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389057, 778114, 1556228, 1945285, 3112456, 3890570, 6224912, 7781140, 15562280, 31124560]

約数ペア:

[(1, 31124560), (2, 15562280), (4, 7781140), (5, 6224912), (8, 3890570), (10, 3112456), (16, 1945285), (20, 1556228), (40, 778114), (80, 389057)]