21270500780

素因数分解:

$2^2\times 5^1\times {\mathrm{1063525039}}^1$

素因数の和:1063525048

約数の個数: 12

約数和(自身を含む): 44668051680

約数和(自身を除く): 23397550900

約数列:

[1, 2, 4, 5, 10, 20, 1063525039, 2127050078, 4254100156, 5317625195, 10635250390, 21270500780]

約数ペア:

[(1, 21270500780), (2, 10635250390), (4, 5317625195), (5, 4254100156), (10, 2127050078), (20, 1063525039)]