64889279

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 87639552

約数和(自身を除く): 22750273

約数列:

[1, 7, 13, 23, 43, 49, 91, 103, 161, 299, 301, 559, 637, 721, 989, 1127, 1339, 2093, 2107, 2369, 3913, 4429, 5047, 6923, 9373, 12857, 14651, 16583, 27391, 30797, 31003, 48461, 57577, 65611, 89999, 101867, 116081, 215579, 217021, 403039, 629993, 713069, 1324271, 1509053, 2821273, 4991483, 9269897, 64889279]

約数ペア:

[(1, 64889279), (7, 9269897), (13, 4991483), (23, 2821273), (43, 1509053), (49, 1324271), (91, 713069), (103, 629993), (161, 403039), (299, 217021), (301, 215579), (559, 116081), (637, 101867), (721, 89999), (989, 65611), (1127, 57577), (1339, 48461), (2093, 31003), (2107, 30797), (2369, 27391), (3913, 16583), (4429, 14651), (5047, 12857), (6923, 9373)]