20472155

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{449}}^1\times {\mathrm{829}}^1$

素因数の和:1294

約数の個数: 16

約数和(自身を含む): 26892000

約数和(自身を除く): 6419845

約数列:

[1, 5, 11, 55, 449, 829, 2245, 4145, 4939, 9119, 24695, 45595, 372221, 1861105, 4094431, 20472155]

約数ペア:

[(1, 20472155), (5, 4094431), (11, 1861105), (55, 372221), (449, 45595), (829, 24695), (2245, 9119), (4145, 4939)]