80881820

素因数分解:

$2^2\times 5^1\times {\mathrm{1217}}^1\times {\mathrm{3323}}^1$

素因数の和:4549

約数の個数: 24

約数和(自身を含む): 170042544

約数和(自身を除く): 89160724

約数列:

[1, 2, 4, 5, 10, 20, 1217, 2434, 3323, 4868, 6085, 6646, 12170, 13292, 16615, 24340, 33230, 66460, 4044091, 8088182, 16176364, 20220455, 40440910, 80881820]

約数ペア:

[(1, 80881820), (2, 40440910), (4, 20220455), (5, 16176364), (10, 8088182), (20, 4044091), (1217, 66460), (2434, 33230), (3323, 24340), (4868, 16615), (6085, 13292), (6646, 12170)]