261691778

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{241}}^1\times {\mathrm{293}}^1$

素因数の和:662

約数の個数: 32

約数和(自身を含む): 422619120

約数和(自身を除く): 160927342

約数列:

[1, 2, 17, 34, 109, 218, 241, 293, 482, 586, 1853, 3706, 4097, 4981, 8194, 9962, 26269, 31937, 52538, 63874, 70613, 141226, 446573, 542929, 893146, 1085858, 1200421, 2400842, 7696817, 15393634, 130845889, 261691778]

約数ペア:

[(1, 261691778), (2, 130845889), (17, 15393634), (34, 7696817), (109, 2400842), (218, 1200421), (241, 1085858), (293, 893146), (482, 542929), (586, 446573), (1853, 141226), (3706, 70613), (4097, 63874), (4981, 52538), (8194, 31937), (9962, 26269)]