42439640

素因数分解:

$2^3\times 5^1\times {\mathrm{1060991}}^1$

素因数の和:1061002

約数の個数: 16

約数和(自身を含む): 95489280

約数和(自身を除く): 53049640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1060991, 2121982, 4243964, 5304955, 8487928, 10609910, 21219820, 42439640]

約数ペア:

[(1, 42439640), (2, 21219820), (4, 10609910), (5, 8487928), (8, 5304955), (10, 4243964), (20, 2121982), (40, 1060991)]