21193844080

素因数分解:

$2^4\times 5^1\times {\mathrm{264923051}}^1$

素因数の和:264923064

約数の個数: 20

約数和(自身を含む): 49275687672

約数和(自身を除く): 28081843592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 264923051, 529846102, 1059692204, 1324615255, 2119384408, 2649230510, 4238768816, 5298461020, 10596922040, 21193844080]

約数ペア:

[(1, 21193844080), (2, 10596922040), (4, 5298461020), (5, 4238768816), (8, 2649230510), (10, 2119384408), (16, 1324615255), (20, 1059692204), (40, 529846102), (80, 264923051)]