208525825

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{419}}^1\times {\mathrm{1171}}^1$

素因数の和:1617

約数の個数: 24

約数和(自身を含む): 274669920

約数和(自身を除く): 66144095

約数列:

[1, 5, 17, 25, 85, 419, 425, 1171, 2095, 5855, 7123, 10475, 19907, 29275, 35615, 99535, 178075, 490649, 497675, 2453245, 8341033, 12266225, 41705165, 208525825]

約数ペア:

[(1, 208525825), (5, 41705165), (17, 12266225), (25, 8341033), (85, 2453245), (419, 497675), (425, 490649), (1171, 178075), (2095, 99535), (5855, 35615), (7123, 29275), (10475, 19907)]