20187661105

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1960919}}^1$

素因数の和:1961024

約数の個数: 16

約数和(自身を含む): 25413523200

約数和(自身を除く): 5225862095

約数列:

[1, 5, 29, 71, 145, 355, 2059, 10295, 1960919, 9804595, 56866651, 139225249, 284333255, 696126245, 4037532221, 20187661105]

約数ペア:

[(1, 20187661105), (5, 4037532221), (29, 696126245), (71, 284333255), (145, 139225249), (355, 56866651), (2059, 9804595), (10295, 1960919)]