80721776

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{44647}}^1$

素因数の和:44768

約数の個数: 20

約数和(自身を含む): 157786032

約数和(自身を除く): 77064256

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 1808, 44647, 89294, 178588, 357176, 714352, 5045111, 10090222, 20180444, 40360888, 80721776]

約数ペア:

[(1, 80721776), (2, 40360888), (4, 20180444), (8, 10090222), (16, 5045111), (113, 714352), (226, 357176), (452, 178588), (904, 89294), (1808, 44647)]