249385825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{449}}^1\times {\mathrm{1709}}^1$

素因数の和:2181

約数の個数: 24

約数和(自身を含む): 333963000

約数和(自身を除く): 84577175

約数列:

[1, 5, 13, 25, 65, 325, 449, 1709, 2245, 5837, 8545, 11225, 22217, 29185, 42725, 111085, 145925, 555425, 767341, 3836705, 9975433, 19183525, 49877165, 249385825]

約数ペア:

[(1, 249385825), (5, 49877165), (13, 19183525), (25, 9975433), (65, 3836705), (325, 767341), (449, 555425), (1709, 145925), (2245, 111085), (5837, 42725), (8545, 29185), (11225, 22217)]