87280360

素因数分解:

$2^3\times 5^1\times {\mathrm{2182009}}^1$

素因数の和:2182020

約数の個数: 16

約数和(自身を含む): 196380900

約数和(自身を除く): 109100540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2182009, 4364018, 8728036, 10910045, 17456072, 21820090, 43640180, 87280360]

約数ペア:

[(1, 87280360), (2, 43640180), (4, 21820090), (5, 17456072), (8, 10910045), (10, 8728036), (20, 4364018), (40, 2182009)]