20760404

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{691}}^1$

素因数の和:768

約数の個数: 48

約数和(自身を含む): 44177280

約数和(自身を除く): 23416876

約数列:

[1, 2, 4, 7, 14, 28, 29, 37, 58, 74, 116, 148, 203, 259, 406, 518, 691, 812, 1036, 1073, 1382, 2146, 2764, 4292, 4837, 7511, 9674, 15022, 19348, 20039, 25567, 30044, 40078, 51134, 80156, 102268, 140273, 178969, 280546, 357938, 561092, 715876, 741443, 1482886, 2965772, 5190101, 10380202, 20760404]

約数ペア:

[(1, 20760404), (2, 10380202), (4, 5190101), (7, 2965772), (14, 1482886), (28, 741443), (29, 715876), (37, 561092), (58, 357938), (74, 280546), (116, 178969), (148, 140273), (203, 102268), (259, 80156), (406, 51134), (518, 40078), (691, 30044), (812, 25567), (1036, 20039), (1073, 19348), (1382, 15022), (2146, 9674), (2764, 7511), (4292, 4837)]