256219901

素因数分解:

$7^1\times {\mathrm{29}}^2\times {\mathrm{71}}^1\times {\mathrm{613}}^1$

素因数の和:749

約数の個数: 24

約数和(自身を含む): 308041344

約数和(自身を除く): 51821443

約数列:

[1, 7, 29, 71, 203, 497, 613, 841, 2059, 4291, 5887, 14413, 17777, 43523, 59711, 124439, 304661, 417977, 515533, 1262167, 3608731, 8835169, 36602843, 256219901]

約数ペア:

[(1, 256219901), (7, 36602843), (29, 8835169), (71, 3608731), (203, 1262167), (497, 515533), (613, 417977), (841, 304661), (2059, 124439), (4291, 59711), (5887, 43523), (14413, 17777)]