25680842

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1$

素因数の和:526

約数の個数: 32

約数和(自身を含む): 43763328

約数和(自身を除く): 18082486

約数列:

[1, 2, 11, 22, 41, 71, 82, 142, 401, 451, 781, 802, 902, 1562, 2911, 4411, 5822, 8822, 16441, 28471, 32021, 32882, 56942, 64042, 180851, 313181, 361702, 626362, 1167311, 2334622, 12840421, 25680842]

約数ペア:

[(1, 25680842), (2, 12840421), (11, 2334622), (22, 1167311), (41, 626362), (71, 361702), (82, 313181), (142, 180851), (401, 64042), (451, 56942), (781, 32882), (802, 32021), (902, 28471), (1562, 16441), (2911, 8822), (4411, 5822)]