20170925

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1531}}^1$

素因数の和:1589

約数の個数: 24

約数和(自身を含む): 27355392

約数和(自身を除く): 7184467

約数列:

[1, 5, 17, 25, 31, 85, 155, 425, 527, 775, 1531, 2635, 7655, 13175, 26027, 38275, 47461, 130135, 237305, 650675, 806837, 1186525, 4034185, 20170925]

約数ペア:

[(1, 20170925), (5, 4034185), (17, 1186525), (25, 806837), (31, 650675), (85, 237305), (155, 130135), (425, 47461), (527, 38275), (775, 26027), (1531, 13175), (2635, 7655)]