128875465

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{431}}^1\times {\mathrm{757}}^1$

素因数の和:1272

約数の個数: 16

約数和(自身を含む): 157178880

約数和(自身を除く): 28303415

約数列:

[1, 5, 79, 395, 431, 757, 2155, 3785, 34049, 59803, 170245, 299015, 326267, 1631335, 25775093, 128875465]

約数ペア:

[(1, 128875465), (5, 25775093), (79, 1631335), (395, 326267), (431, 299015), (757, 170245), (2155, 59803), (3785, 34049)]