20009240

素因数分解:

$2^3\times 5^1\times {\mathrm{500231}}^1$

素因数の和:500242

約数の個数: 16

約数和(自身を含む): 45020880

約数和(自身を除く): 25011640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 500231, 1000462, 2000924, 2501155, 4001848, 5002310, 10004620, 20009240]

約数ペア:

[(1, 20009240), (2, 10004620), (4, 5002310), (5, 4001848), (8, 2501155), (10, 2000924), (20, 1000462), (40, 500231)]