19966610

素因数分解:

$2^1\times 5^1\times {\mathrm{1289}}^1\times {\mathrm{1549}}^1$

素因数の和:2845

約数の個数: 16

約数和(自身を含む): 35991000

約数和(自身を除く): 16024390

約数列:

[1, 2, 5, 10, 1289, 1549, 2578, 3098, 6445, 7745, 12890, 15490, 1996661, 3993322, 9983305, 19966610]

約数ペア:

[(1, 19966610), (2, 9983305), (5, 3993322), (10, 1996661), (1289, 15490), (1549, 12890), (2578, 7745), (3098, 6445)]