39678280

素因数分解:

$2^3\times 5^1\times {\mathrm{991957}}^1$

素因数の和:991968

約数の個数: 16

約数和(自身を含む): 89276220

約数和(自身を除く): 49597940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 991957, 1983914, 3967828, 4959785, 7935656, 9919570, 19839140, 39678280]

約数ペア:

[(1, 39678280), (2, 19839140), (4, 9919570), (5, 7935656), (8, 4959785), (10, 3967828), (20, 1983914), (40, 991957)]