128694025

素因数分解:

$5^2\times {\mathrm{29}}^2\times {\mathrm{6121}}^1$

素因数の和:6189

約数の個数: 18

約数和(自身を含む): 165300122

約数和(自身を除く): 36606097

約数列:

[1, 5, 25, 29, 145, 725, 841, 4205, 6121, 21025, 30605, 153025, 177509, 887545, 4437725, 5147761, 25738805, 128694025]

約数ペア:

[(1, 128694025), (5, 25738805), (25, 5147761), (29, 4437725), (145, 887545), (725, 177509), (841, 153025), (4205, 30605), (6121, 21025)]