156912821990

素因数分解:

$2^1\times 5^1\times {\mathrm{39869}}^1\times {\mathrm{393571}}^1$

素因数の和:433447

約数の個数: 16

約数和(自身を含む): 282450881520

約数和(自身を除く): 125538059530

約数列:

[1, 2, 5, 10, 39869, 79738, 199345, 393571, 398690, 787142, 1967855, 3935710, 15691282199, 31382564398, 78456410995, 156912821990]

約数ペア:

[(1, 156912821990), (2, 78456410995), (5, 31382564398), (10, 15691282199), (39869, 3935710), (79738, 1967855), (199345, 787142), (393571, 398690)]