80851640

素因数分解:

$2^3\times 5^1\times {\mathrm{2021291}}^1$

素因数の和:2021302

約数の個数: 16

約数和(自身を含む): 181916280

約数和(自身を除く): 101064640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2021291, 4042582, 8085164, 10106455, 16170328, 20212910, 40425820, 80851640]

約数ペア:

[(1, 80851640), (2, 40425820), (4, 20212910), (5, 16170328), (8, 10106455), (10, 8085164), (20, 4042582), (40, 2021291)]