81967285

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41927}}^1$

素因数の和:41972

約数の個数: 16

約数和(自身を含む): 108677376

約数和(自身を除く): 26710091

約数列:

[1, 5, 17, 23, 85, 115, 391, 1955, 41927, 209635, 712759, 964321, 3563795, 4821605, 16393457, 81967285]

約数ペア:

[(1, 81967285), (5, 16393457), (17, 4821605), (23, 3563795), (85, 964321), (115, 712759), (391, 209635), (1955, 41927)]