18280485

素因数分解:

$3^4\times 5^1\times {\mathrm{45137}}^1$

素因数の和:45154

約数の個数: 20

約数和(自身を含む): 32770188

約数和(自身を除く): 14489703

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 45137, 135411, 225685, 406233, 677055, 1218699, 2031165, 3656097, 6093495, 18280485]

約数ペア:

[(1, 18280485), (3, 6093495), (5, 3656097), (9, 2031165), (15, 1218699), (27, 677055), (45, 406233), (81, 225685), (135, 135411), (405, 45137)]