28420235

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1\times {\mathrm{359}}^1$

素因数の和:658

約数の個数: 16

約数和(自身を含む): 34836480

約数和(自身を除く): 6416245

約数列:

[1, 5, 71, 223, 355, 359, 1115, 1795, 15833, 25489, 79165, 80057, 127445, 400285, 5684047, 28420235]

約数ペア:

[(1, 28420235), (5, 5684047), (71, 400285), (223, 127445), (355, 80057), (359, 79165), (1115, 25489), (1795, 15833)]