39901640

素因数分解:

$2^3\times 5^1\times {\mathrm{997541}}^1$

素因数の和:997552

約数の個数: 16

約数和(自身を含む): 89778780

約数和(自身を除く): 49877140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 997541, 1995082, 3990164, 4987705, 7980328, 9975410, 19950820, 39901640]

約数ペア:

[(1, 39901640), (2, 19950820), (4, 9975410), (5, 7980328), (8, 4987705), (10, 3990164), (20, 1995082), (40, 997541)]