18145840

素因数分解:

$2^4\times 5^1\times {\mathrm{226823}}^1$

素因数の和:226836

約数の個数: 20

約数和(自身を含む): 42189264

約数和(自身を除く): 24043424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 226823, 453646, 907292, 1134115, 1814584, 2268230, 3629168, 4536460, 9072920, 18145840]

約数ペア:

[(1, 18145840), (2, 9072920), (4, 4536460), (5, 3629168), (8, 2268230), (10, 1814584), (16, 1134115), (20, 907292), (40, 453646), (80, 226823)]