257955786

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^3\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:178

約数の個数: 128

約数和(自身を含む): 654232320

約数和(自身を除く): 396276534

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 37, 54, 66, 74, 97, 99, 111, 121, 194, 198, 222, 242, 291, 297, 333, 363, 407, 582, 594, 666, 726, 814, 873, 999, 1067, 1089, 1221, 1331, 1746, 1998, 2134, 2178, 2442, 2619, 2662, 3201, 3267, 3589, 3663, 3993, 4477, 5238, 6402, 6534, 7178, 7326, 7986, 8954, 9603, 10767, 10989, 11737, 11979, 13431, 19206, 21534, 21978, 23474, 23958, 26862, 28809, 32301, 35211, 35937, 39479, 40293, 49247, 57618, 64602, 70422, 71874, 78958, 80586, 96903, 98494, 105633, 118437, 120879, 129107, 147741, 193806, 211266, 236874, 241758, 258214, 295482, 316899, 355311, 387321, 434269, 443223, 633798, 710622, 774642, 868538, 886446, 1065933, 1161963, 1302807, 1329669, 2131866, 2323926, 2605614, 2659338, 3485889, 3908421, 4776959, 6971778, 7816842, 9553918, 11725263, 14330877, 23450526, 28661754, 42992631, 85985262, 128977893, 257955786]

約数ペア:

[(1, 257955786), (2, 128977893), (3, 85985262), (6, 42992631), (9, 28661754), (11, 23450526), (18, 14330877), (22, 11725263), (27, 9553918), (33, 7816842), (37, 6971778), (54, 4776959), (66, 3908421), (74, 3485889), (97, 2659338), (99, 2605614), (111, 2323926), (121, 2131866), (194, 1329669), (198, 1302807), (222, 1161963), (242, 1065933), (291, 886446), (297, 868538), (333, 774642), (363, 710622), (407, 633798), (582, 443223), (594, 434269), (666, 387321), (726, 355311), (814, 316899), (873, 295482), (999, 258214), (1067, 241758), (1089, 236874), (1221, 211266), (1331, 193806), (1746, 147741), (1998, 129107), (2134, 120879), (2178, 118437), (2442, 105633), (2619, 98494), (2662, 96903), (3201, 80586), (3267, 78958), (3589, 71874), (3663, 70422), (3993, 64602), (4477, 57618), (5238, 49247), (6402, 40293), (6534, 39479), (7178, 35937), (7326, 35211), (7986, 32301), (8954, 28809), (9603, 26862), (10767, 23958), (10989, 23474), (11737, 21978), (11979, 21534), (13431, 19206)]