20409110

素因数分解:

$2^1\times 5^1\times {\mathrm{439}}^1\times {\mathrm{4649}}^1$

素因数の和:5095

約数の個数: 16

約数和(自身を含む): 36828000

約数和(自身を除く): 16418890

約数列:

[1, 2, 5, 10, 439, 878, 2195, 4390, 4649, 9298, 23245, 46490, 2040911, 4081822, 10204555, 20409110]

約数ペア:

[(1, 20409110), (2, 10204555), (5, 4081822), (10, 2040911), (439, 46490), (878, 23245), (2195, 9298), (4390, 4649)]