128408975

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{743}}^1$

素因数の和:1007

約数の個数: 24

約数和(自身を含む): 165322752

約数和(自身を除く): 36913777

約数列:

[1, 5, 25, 31, 155, 223, 743, 775, 1115, 3715, 5575, 6913, 18575, 23033, 34565, 115165, 165689, 172825, 575825, 828445, 4142225, 5136359, 25681795, 128408975]

約数ペア:

[(1, 128408975), (5, 25681795), (25, 5136359), (31, 4142225), (155, 828445), (223, 575825), (743, 172825), (775, 165689), (1115, 115165), (3715, 34565), (5575, 23033), (6913, 18575)]