156871640

素因数分解:

$2^3\times 5^1\times {\mathrm{3921791}}^1$

素因数の和:3921802

約数の個数: 16

約数和(自身を含む): 352961280

約数和(自身を除く): 196089640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3921791, 7843582, 15687164, 19608955, 31374328, 39217910, 78435820, 156871640]

約数ペア:

[(1, 156871640), (2, 78435820), (4, 39217910), (5, 31374328), (8, 19608955), (10, 15687164), (20, 7843582), (40, 3921791)]