279995620

素因数分解:

$2^2\times 5^1\times {\mathrm{13999781}}^1$

素因数の和:13999790

約数の個数: 12

約数和(自身を含む): 587990844

約数和(自身を除く): 307995224

約数列:

[1, 2, 4, 5, 10, 20, 13999781, 27999562, 55999124, 69998905, 139997810, 279995620]

約数ペア:

[(1, 279995620), (2, 139997810), (4, 69998905), (5, 55999124), (10, 27999562), (20, 13999781)]