2561281016

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2407219}}^1$

素因数の和:2407251

約数の個数: 32

約数和(自身を含む): 5777328000

約数和(自身を除く): 3216046984

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 2407219, 4814438, 9628876, 16850533, 19257752, 33701066, 45737161, 67402132, 91474322, 134804264, 182948644, 320160127, 365897288, 640320254, 1280640508, 2561281016]

約数ペア:

[(1, 2561281016), (2, 1280640508), (4, 640320254), (7, 365897288), (8, 320160127), (14, 182948644), (19, 134804264), (28, 91474322), (38, 67402132), (56, 45737161), (76, 33701066), (133, 19257752), (152, 16850533), (266, 9628876), (532, 4814438), (1064, 2407219)]