20764658516

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3967}}^1\times {\mathrm{9839}}^1$

素因数の和:13836

約数の個数: 48

約数和(自身を含む): 43730534400

約数和(自身を除く): 22965875884

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 3967, 7934, 9839, 15868, 19678, 27769, 39356, 55538, 68873, 75373, 111076, 137746, 150746, 186941, 275492, 301492, 373882, 527611, 747764, 1055222, 1308587, 2110444, 2617174, 5234348, 39031313, 78062626, 156125252, 273219191, 546438382, 741594947, 1092876764, 1483189894, 2966379788, 5191164629, 10382329258, 20764658516]

約数ペア:

[(1, 20764658516), (2, 10382329258), (4, 5191164629), (7, 2966379788), (14, 1483189894), (19, 1092876764), (28, 741594947), (38, 546438382), (76, 273219191), (133, 156125252), (266, 78062626), (532, 39031313), (3967, 5234348), (7934, 2617174), (9839, 2110444), (15868, 1308587), (19678, 1055222), (27769, 747764), (39356, 527611), (55538, 373882), (68873, 301492), (75373, 275492), (111076, 186941), (137746, 150746)]