18068080

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3181}}^1$

素因数の和:3265

約数の個数: 40

約数和(自身を含む): 42613344

約数和(自身を除く): 24545264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 3181, 5680, 6362, 12724, 15905, 25448, 31810, 50896, 63620, 127240, 225851, 254480, 451702, 903404, 1129255, 1806808, 2258510, 3613616, 4517020, 9034040, 18068080]

約数ペア:

[(1, 18068080), (2, 9034040), (4, 4517020), (5, 3613616), (8, 2258510), (10, 1806808), (16, 1129255), (20, 903404), (40, 451702), (71, 254480), (80, 225851), (142, 127240), (284, 63620), (355, 50896), (568, 31810), (710, 25448), (1136, 15905), (1420, 12724), (2840, 6362), (3181, 5680)]