647128225

素因数分解:

$5^2\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{4523}}^1$

素因数の和:4689

約数の個数: 24

約数和(自身を含む): 824634720

約数和(自身を除く): 177506495

約数列:

[1, 5, 25, 59, 97, 295, 485, 1475, 2425, 4523, 5723, 22615, 28615, 113075, 143075, 266857, 438731, 1334285, 2193655, 6671425, 10968275, 25885129, 129425645, 647128225]

約数ペア:

[(1, 647128225), (5, 129425645), (25, 25885129), (59, 10968275), (97, 6671425), (295, 2193655), (485, 1334285), (1475, 438731), (2425, 266857), (4523, 143075), (5723, 113075), (22615, 28615)]