20377160

素因数分解:

$2^3\times 5^1\times {\mathrm{509429}}^1$

素因数の和:509440

約数の個数: 16

約数和(自身を含む): 45848700

約数和(自身を除く): 25471540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509429, 1018858, 2037716, 2547145, 4075432, 5094290, 10188580, 20377160]

約数ペア:

[(1, 20377160), (2, 10188580), (4, 5094290), (5, 4075432), (8, 2547145), (10, 2037716), (20, 1018858), (40, 509429)]