2019647905

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{81421}}^1$

素因数の和:81489

約数の個数: 24

約数和(自身を含む): 2728939752

約数和(自身を除く): 709291847

約数列:

[1, 5, 11, 41, 55, 121, 205, 451, 605, 2255, 4961, 24805, 81421, 407105, 895631, 3338261, 4478155, 9851941, 16691305, 36720871, 49259705, 183604355, 403929581, 2019647905]

約数ペア:

[(1, 2019647905), (5, 403929581), (11, 183604355), (41, 49259705), (55, 36720871), (121, 16691305), (205, 9851941), (451, 4478155), (605, 3338261), (2255, 895631), (4961, 407105), (24805, 81421)]