18091225

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{431}}^1$

素因数の和:537

約数の個数: 24

約数和(自身を含む): 23784192

約数和(自身を除く): 5692967

約数列:

[1, 5, 23, 25, 73, 115, 365, 431, 575, 1679, 1825, 2155, 8395, 9913, 10775, 31463, 41975, 49565, 157315, 247825, 723649, 786575, 3618245, 18091225]

約数ペア:

[(1, 18091225), (5, 3618245), (23, 786575), (25, 723649), (73, 247825), (115, 157315), (365, 49565), (431, 41975), (575, 31463), (1679, 10775), (1825, 9913), (2155, 8395)]