20001865

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{2423}}^1$

素因数の和:2568

約数の個数: 16

約数和(自身を含む): 26062848

約数和(自身を除く): 6060983

約数列:

[1, 5, 13, 65, 127, 635, 1651, 2423, 8255, 12115, 31499, 157495, 307721, 1538605, 4000373, 20001865]

約数ペア:

[(1, 20001865), (5, 4000373), (13, 1538605), (65, 307721), (127, 157495), (635, 31499), (1651, 12115), (2423, 8255)]