80818280

素因数分解:

$2^3\times 5^1\times {\mathrm{2020457}}^1$

素因数の和:2020468

約数の個数: 16

約数和(自身を含む): 181841220

約数和(自身を除く): 101022940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2020457, 4040914, 8081828, 10102285, 16163656, 20204570, 40409140, 80818280]

約数ペア:

[(1, 80818280), (2, 40409140), (4, 20204570), (5, 16163656), (8, 10102285), (10, 8081828), (20, 4040914), (40, 2020457)]