40487330

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23957}}^1$

素因数の和:23990

約数の個数: 24

約数和(自身を含む): 78917652

約数和(自身を除く): 38430322

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 23957, 47914, 119785, 239570, 311441, 622882, 1557205, 3114410, 4048733, 8097466, 20243665, 40487330]

約数ペア:

[(1, 40487330), (2, 20243665), (5, 8097466), (10, 4048733), (13, 3114410), (26, 1557205), (65, 622882), (130, 311441), (169, 239570), (338, 119785), (845, 47914), (1690, 23957)]