921491120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1987}}^1$

素因数の和:2059

約数の個数: 160

約数和(自身を含む): 2555836416

約数和(自身を除く): 1634345296

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 31, 34, 40, 44, 55, 62, 68, 80, 85, 88, 110, 124, 136, 155, 170, 176, 187, 220, 248, 272, 310, 340, 341, 374, 440, 496, 527, 620, 680, 682, 748, 880, 935, 1054, 1240, 1360, 1364, 1496, 1705, 1870, 1987, 2108, 2480, 2635, 2728, 2992, 3410, 3740, 3974, 4216, 5270, 5456, 5797, 6820, 7480, 7948, 8432, 9935, 10540, 11594, 13640, 14960, 15896, 19870, 21080, 21857, 23188, 27280, 28985, 31792, 33779, 39740, 42160, 43714, 46376, 57970, 61597, 67558, 79480, 87428, 92752, 109285, 115940, 123194, 135116, 158960, 168895, 174856, 218570, 231880, 246388, 270232, 307985, 337790, 349712, 371569, 437140, 463760, 492776, 540464, 615970, 675580, 677567, 743138, 874280, 985552, 1047149, 1231940, 1351160, 1355134, 1486276, 1748560, 1857845, 2094298, 2463880, 2702320, 2710268, 2972552, 3387835, 3715690, 4188596, 4927760, 5235745, 5420536, 5945104, 6775670, 7431380, 8377192, 10471490, 10841072, 11518639, 13551340, 14862760, 16754384, 20942980, 23037278, 27102680, 29725520, 41885960, 46074556, 54205360, 57593195, 83771920, 92149112, 115186390, 184298224, 230372780, 460745560, 921491120]

約数ペア:

[(1, 921491120), (2, 460745560), (4, 230372780), (5, 184298224), (8, 115186390), (10, 92149112), (11, 83771920), (16, 57593195), (17, 54205360), (20, 46074556), (22, 41885960), (31, 29725520), (34, 27102680), (40, 23037278), (44, 20942980), (55, 16754384), (62, 14862760), (68, 13551340), (80, 11518639), (85, 10841072), (88, 10471490), (110, 8377192), (124, 7431380), (136, 6775670), (155, 5945104), (170, 5420536), (176, 5235745), (187, 4927760), (220, 4188596), (248, 3715690), (272, 3387835), (310, 2972552), (340, 2710268), (341, 2702320), (374, 2463880), (440, 2094298), (496, 1857845), (527, 1748560), (620, 1486276), (680, 1355134), (682, 1351160), (748, 1231940), (880, 1047149), (935, 985552), (1054, 874280), (1240, 743138), (1360, 677567), (1364, 675580), (1496, 615970), (1705, 540464), (1870, 492776), (1987, 463760), (2108, 437140), (2480, 371569), (2635, 349712), (2728, 337790), (2992, 307985), (3410, 270232), (3740, 246388), (3974, 231880), (4216, 218570), (5270, 174856), (5456, 168895), (5797, 158960), (6820, 135116), (7480, 123194), (7948, 115940), (8432, 109285), (9935, 92752), (10540, 87428), (11594, 79480), (13640, 67558), (14960, 61597), (15896, 57970), (19870, 46376), (21080, 43714), (21857, 42160), (23188, 39740), (27280, 33779), (28985, 31792)]