20128105

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{967}}^1$

素因数の和:1176

約数の個数: 16

約数和(自身を含む): 25369344

約数和(自身を除く): 5241239

約数列:

[1, 5, 23, 115, 181, 905, 967, 4163, 4835, 20815, 22241, 111205, 175027, 875135, 4025621, 20128105]

約数ペア:

[(1, 20128105), (5, 4025621), (23, 875135), (115, 175027), (181, 111205), (905, 22241), (967, 20815), (4163, 4835)]