18075920

素因数分解:

$2^4\times 5^1\times {\mathrm{225949}}^1$

素因数の和:225962

約数の個数: 20

約数和(自身を含む): 42026700

約数和(自身を除く): 23950780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 225949, 451898, 903796, 1129745, 1807592, 2259490, 3615184, 4518980, 9037960, 18075920]

約数ペア:

[(1, 18075920), (2, 9037960), (4, 4518980), (5, 3615184), (8, 2259490), (10, 1807592), (16, 1129745), (20, 903796), (40, 451898), (80, 225949)]