1389888038

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:287

約数の個数: 144

約数和(自身を含む): 2911104000

約数和(自身を除く): 1521215962

約数列:

[1, 2, 7, 11, 14, 19, 22, 31, 38, 49, 62, 77, 98, 121, 133, 154, 199, 209, 217, 242, 266, 341, 398, 418, 434, 539, 589, 682, 847, 931, 1078, 1178, 1393, 1463, 1519, 1694, 1862, 2189, 2299, 2387, 2786, 2926, 3038, 3751, 3781, 4123, 4378, 4598, 4774, 5929, 6169, 6479, 7502, 7562, 8246, 9751, 10241, 11858, 12338, 12958, 15323, 16093, 16709, 19502, 20482, 24079, 26257, 26467, 28861, 30646, 32186, 33418, 41591, 43183, 45353, 48158, 52514, 52934, 57722, 67859, 71269, 83182, 86366, 90706, 107261, 112651, 117211, 135718, 142538, 168553, 183799, 185269, 214522, 225302, 234422, 291137, 302281, 317471, 337106, 367598, 370538, 457501, 475013, 498883, 582274, 604562, 634942, 746449, 820477, 915002, 950026, 997766, 1179871, 1289321, 1492898, 1640954, 2037959, 2359742, 2578642, 3202507, 3325091, 3492181, 4075918, 5225143, 5743339, 6405014, 6650182, 6984362, 9025247, 10450286, 11486678, 14182531, 18050494, 22417549, 28365062, 36576001, 44835098, 63176729, 73152002, 99277717, 126353458, 198555434, 694944019, 1389888038]

約数ペア:

[(1, 1389888038), (2, 694944019), (7, 198555434), (11, 126353458), (14, 99277717), (19, 73152002), (22, 63176729), (31, 44835098), (38, 36576001), (49, 28365062), (62, 22417549), (77, 18050494), (98, 14182531), (121, 11486678), (133, 10450286), (154, 9025247), (199, 6984362), (209, 6650182), (217, 6405014), (242, 5743339), (266, 5225143), (341, 4075918), (398, 3492181), (418, 3325091), (434, 3202507), (539, 2578642), (589, 2359742), (682, 2037959), (847, 1640954), (931, 1492898), (1078, 1289321), (1178, 1179871), (1393, 997766), (1463, 950026), (1519, 915002), (1694, 820477), (1862, 746449), (2189, 634942), (2299, 604562), (2387, 582274), (2786, 498883), (2926, 475013), (3038, 457501), (3751, 370538), (3781, 367598), (4123, 337106), (4378, 317471), (4598, 302281), (4774, 291137), (5929, 234422), (6169, 225302), (6479, 214522), (7502, 185269), (7562, 183799), (8246, 168553), (9751, 142538), (10241, 135718), (11858, 117211), (12338, 112651), (12958, 107261), (15323, 90706), (16093, 86366), (16709, 83182), (19502, 71269), (20482, 67859), (24079, 57722), (26257, 52934), (26467, 52514), (28861, 48158), (30646, 45353), (32186, 43183), (33418, 41591)]