81641525

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{16087}}^1$

素因数の和:16133

約数の個数: 24

約数和(自身を含む): 119694720

約数和(自身を除く): 38053195

約数列:

[1, 5, 7, 25, 29, 35, 145, 175, 203, 725, 1015, 5075, 16087, 80435, 112609, 402175, 466523, 563045, 2332615, 2815225, 3265661, 11663075, 16328305, 81641525]

約数ペア:

[(1, 81641525), (5, 16328305), (7, 11663075), (25, 3265661), (29, 2815225), (35, 2332615), (145, 563045), (175, 466523), (203, 402175), (725, 112609), (1015, 80435), (5075, 16087)]