12960440

素因数分解:

$2^3\times 5^1\times {\mathrm{324011}}^1$

素因数の和:324022

約数の個数: 16

約数和(自身を含む): 29161080

約数和(自身を除く): 16200640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 324011, 648022, 1296044, 1620055, 2592088, 3240110, 6480220, 12960440]

約数ペア:

[(1, 12960440), (2, 6480220), (4, 3240110), (5, 2592088), (8, 1620055), (10, 1296044), (20, 648022), (40, 324011)]