20519795

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{1637}}^1$

素因数の和:1774

約数の個数: 16

約数和(自身を含む): 25945920

約数和(自身を除く): 5426125

約数列:

[1, 5, 23, 109, 115, 545, 1637, 2507, 8185, 12535, 37651, 178433, 188255, 892165, 4103959, 20519795]

約数ペア:

[(1, 20519795), (5, 4103959), (23, 892165), (109, 188255), (115, 178433), (545, 37651), (1637, 12535), (2507, 8185)]