40279640

素因数分解:

$2^3\times 5^1\times {\mathrm{1006991}}^1$

素因数の和:1007002

約数の個数: 16

約数和(自身を含む): 90629280

約数和(自身を除く): 50349640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1006991, 2013982, 4027964, 5034955, 8055928, 10069910, 20139820, 40279640]

約数ペア:

[(1, 40279640), (2, 20139820), (4, 10069910), (5, 8055928), (8, 5034955), (10, 4027964), (20, 2013982), (40, 1006991)]