20915620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{95071}}^1$

素因数の和:95091

約数の個数: 24

約数和(自身を含む): 47916288

約数和(自身を除く): 27000668

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 95071, 190142, 380284, 475355, 950710, 1045781, 1901420, 2091562, 4183124, 5228905, 10457810, 20915620]

約数ペア:

[(1, 20915620), (2, 10457810), (4, 5228905), (5, 4183124), (10, 2091562), (11, 1901420), (20, 1045781), (22, 950710), (44, 475355), (55, 380284), (110, 190142), (220, 95071)]