2168778878

素因数分解:

$2^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{313}}^1$

素因数の和:561

約数の個数: 64

約数和(自身を含む): 3874106880

約数和(自身を除く): 1705328002

約数列:

[1, 2, 7, 14, 67, 83, 89, 134, 166, 178, 313, 469, 581, 623, 626, 938, 1162, 1246, 2191, 4382, 5561, 5963, 7387, 11122, 11926, 14774, 20971, 25979, 27857, 38927, 41741, 41942, 51709, 51958, 55714, 77854, 83482, 103418, 146797, 181853, 194999, 293594, 363706, 389998, 494929, 989858, 1740593, 1866419, 2312131, 3464503, 3481186, 3732838, 4624262, 6929006, 12184151, 13064933, 16184917, 24368302, 26129866, 32369834, 154912777, 309825554, 1084389439, 2168778878]

約数ペア:

[(1, 2168778878), (2, 1084389439), (7, 309825554), (14, 154912777), (67, 32369834), (83, 26129866), (89, 24368302), (134, 16184917), (166, 13064933), (178, 12184151), (313, 6929006), (469, 4624262), (581, 3732838), (623, 3481186), (626, 3464503), (938, 2312131), (1162, 1866419), (1246, 1740593), (2191, 989858), (4382, 494929), (5561, 389998), (5963, 363706), (7387, 293594), (11122, 194999), (11926, 181853), (14774, 146797), (20971, 103418), (25979, 83482), (27857, 77854), (38927, 55714), (41741, 51958), (41942, 51709)]