25781690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{811}}^1$

素因数の和:863

約数の個数: 48

約数和(自身を含む): 53845344

約数和(自身を除く): 28063654

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 289, 374, 578, 811, 935, 1445, 1622, 1870, 2890, 3179, 4055, 6358, 8110, 8921, 13787, 15895, 17842, 27574, 31790, 44605, 68935, 89210, 137870, 151657, 234379, 303314, 468758, 758285, 1171895, 1516570, 2343790, 2578169, 5156338, 12890845, 25781690]

約数ペア:

[(1, 25781690), (2, 12890845), (5, 5156338), (10, 2578169), (11, 2343790), (17, 1516570), (22, 1171895), (34, 758285), (55, 468758), (85, 303314), (110, 234379), (170, 151657), (187, 137870), (289, 89210), (374, 68935), (578, 44605), (811, 31790), (935, 27574), (1445, 17842), (1622, 15895), (1870, 13787), (2890, 8921), (3179, 8110), (4055, 6358)]