20085620

素因数分解:

$2^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{2267}}^1$

素因数の和:2719

約数の個数: 24

約数和(自身を含む): 42293664

約数和(自身を除く): 22208044

約数列:

[1, 2, 4, 5, 10, 20, 443, 886, 1772, 2215, 2267, 4430, 4534, 8860, 9068, 11335, 22670, 45340, 1004281, 2008562, 4017124, 5021405, 10042810, 20085620]

約数ペア:

[(1, 20085620), (2, 10042810), (4, 5021405), (5, 4017124), (10, 2008562), (20, 1004281), (443, 45340), (886, 22670), (1772, 11335), (2215, 9068), (2267, 8860), (4430, 4534)]