128575205

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{461}}^2$

素因数の和:949

約数の個数: 18

約数和(自身を含む): 169960434

約数和(自身を除く): 41385229

約数列:

[1, 5, 11, 55, 121, 461, 605, 2305, 5071, 25355, 55781, 212521, 278905, 1062605, 2337731, 11688655, 25715041, 128575205]

約数ペア:

[(1, 128575205), (5, 25715041), (11, 11688655), (55, 2337731), (121, 1062605), (461, 278905), (605, 212521), (2305, 55781), (5071, 25355)]