20180168

素因数分解:

$2^3\times {\mathrm{311}}^1\times {\mathrm{8111}}^1$

素因数の和:8428

約数の個数: 16

約数和(自身を含む): 37964160

約数和(自身を除く): 17783992

約数列:

[1, 2, 4, 8, 311, 622, 1244, 2488, 8111, 16222, 32444, 64888, 2522521, 5045042, 10090084, 20180168]

約数ペア:

[(1, 20180168), (2, 10090084), (4, 5045042), (8, 2522521), (311, 64888), (622, 32444), (1244, 16222), (2488, 8111)]