31185756

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:181

約数の個数: 144

約数和(自身を含む): 96526080

約数和(自身を除く): 65340324

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 71, 83, 84, 98, 108, 126, 142, 147, 166, 189, 196, 213, 249, 252, 284, 294, 332, 378, 426, 441, 497, 498, 581, 588, 639, 747, 756, 852, 882, 994, 996, 1162, 1278, 1323, 1491, 1494, 1743, 1764, 1917, 1988, 2241, 2324, 2556, 2646, 2982, 2988, 3479, 3486, 3834, 4067, 4473, 4482, 5229, 5292, 5893, 5964, 6958, 6972, 7668, 8134, 8946, 8964, 10437, 10458, 11786, 12201, 13419, 13916, 15687, 16268, 17679, 17892, 20874, 20916, 23572, 24402, 26838, 31311, 31374, 35358, 36603, 41251, 41748, 48804, 53037, 53676, 62622, 62748, 70716, 73206, 82502, 93933, 106074, 109809, 123753, 125244, 146412, 159111, 165004, 187866, 212148, 219618, 247506, 288757, 318222, 371259, 375732, 439236, 495012, 577514, 636444, 742518, 866271, 1113777, 1155028, 1485036, 1732542, 2227554, 2598813, 3465084, 4455108, 5197626, 7796439, 10395252, 15592878, 31185756]

約数ペア:

[(1, 31185756), (2, 15592878), (3, 10395252), (4, 7796439), (6, 5197626), (7, 4455108), (9, 3465084), (12, 2598813), (14, 2227554), (18, 1732542), (21, 1485036), (27, 1155028), (28, 1113777), (36, 866271), (42, 742518), (49, 636444), (54, 577514), (63, 495012), (71, 439236), (83, 375732), (84, 371259), (98, 318222), (108, 288757), (126, 247506), (142, 219618), (147, 212148), (166, 187866), (189, 165004), (196, 159111), (213, 146412), (249, 125244), (252, 123753), (284, 109809), (294, 106074), (332, 93933), (378, 82502), (426, 73206), (441, 70716), (497, 62748), (498, 62622), (581, 53676), (588, 53037), (639, 48804), (747, 41748), (756, 41251), (852, 36603), (882, 35358), (994, 31374), (996, 31311), (1162, 26838), (1278, 24402), (1323, 23572), (1491, 20916), (1494, 20874), (1743, 17892), (1764, 17679), (1917, 16268), (1988, 15687), (2241, 13916), (2324, 13419), (2556, 12201), (2646, 11786), (2982, 10458), (2988, 10437), (3479, 8964), (3486, 8946), (3834, 8134), (4067, 7668), (4473, 6972), (4482, 6958), (5229, 5964), (5292, 5893)]