1780994579

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{241}}^1\times {\mathrm{281}}^1$

素因数の和:576

約数の個数: 48

約数和(自身を含む): 2346501696

約数和(自身を除く): 565507117

約数列:

[1, 7, 13, 17, 91, 119, 221, 241, 281, 289, 1547, 1687, 1967, 2023, 3133, 3653, 3757, 4097, 4777, 21931, 25571, 26299, 28679, 33439, 53261, 62101, 67721, 69649, 81209, 372827, 434707, 474047, 487543, 568463, 880373, 905437, 1055717, 1151257, 6162611, 6338059, 7390019, 8058799, 14966341, 19571369, 104764387, 136999583, 254427797, 1780994579]

約数ペア:

[(1, 1780994579), (7, 254427797), (13, 136999583), (17, 104764387), (91, 19571369), (119, 14966341), (221, 8058799), (241, 7390019), (281, 6338059), (289, 6162611), (1547, 1151257), (1687, 1055717), (1967, 905437), (2023, 880373), (3133, 568463), (3653, 487543), (3757, 474047), (4097, 434707), (4777, 372827), (21931, 81209), (25571, 69649), (26299, 67721), (28679, 62101), (33439, 53261)]