256416216

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:214

約数の個数: 192

約数和(自身を含む): 785998080

約数和(自身を除く): 529581864

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 37, 42, 49, 56, 71, 74, 83, 84, 98, 111, 142, 147, 148, 166, 168, 196, 213, 222, 249, 259, 284, 294, 296, 332, 392, 426, 444, 497, 498, 518, 568, 581, 588, 664, 777, 852, 888, 994, 996, 1036, 1162, 1176, 1491, 1554, 1704, 1743, 1813, 1988, 1992, 2072, 2324, 2627, 2982, 3071, 3108, 3479, 3486, 3626, 3976, 4067, 4648, 5254, 5439, 5893, 5964, 6142, 6216, 6958, 6972, 7252, 7881, 8134, 9213, 10437, 10508, 10878, 11786, 11928, 12201, 12284, 13916, 13944, 14504, 15762, 16268, 17679, 18389, 18426, 20874, 21016, 21497, 21756, 23572, 24402, 24568, 27832, 31524, 32536, 35358, 36778, 36852, 41251, 41748, 42994, 43512, 47144, 48804, 55167, 63048, 64491, 70716, 73556, 73704, 82502, 83496, 85988, 97608, 110334, 123753, 128723, 128982, 141432, 147112, 150479, 165004, 171976, 218041, 220668, 247506, 257446, 257964, 288757, 300958, 330008, 386169, 436082, 441336, 451437, 495012, 514892, 515928, 577514, 601916, 654123, 772338, 866271, 872164, 902874, 990024, 1029784, 1155028, 1203832, 1308246, 1526287, 1544676, 1732542, 1744328, 1805748, 2310056, 2616492, 3052574, 3089352, 3465084, 3611496, 4578861, 5232984, 6105148, 6930168, 9157722, 10684009, 12210296, 18315444, 21368018, 32052027, 36630888, 42736036, 64104054, 85472072, 128208108, 256416216]

約数ペア:

[(1, 256416216), (2, 128208108), (3, 85472072), (4, 64104054), (6, 42736036), (7, 36630888), (8, 32052027), (12, 21368018), (14, 18315444), (21, 12210296), (24, 10684009), (28, 9157722), (37, 6930168), (42, 6105148), (49, 5232984), (56, 4578861), (71, 3611496), (74, 3465084), (83, 3089352), (84, 3052574), (98, 2616492), (111, 2310056), (142, 1805748), (147, 1744328), (148, 1732542), (166, 1544676), (168, 1526287), (196, 1308246), (213, 1203832), (222, 1155028), (249, 1029784), (259, 990024), (284, 902874), (294, 872164), (296, 866271), (332, 772338), (392, 654123), (426, 601916), (444, 577514), (497, 515928), (498, 514892), (518, 495012), (568, 451437), (581, 441336), (588, 436082), (664, 386169), (777, 330008), (852, 300958), (888, 288757), (994, 257964), (996, 257446), (1036, 247506), (1162, 220668), (1176, 218041), (1491, 171976), (1554, 165004), (1704, 150479), (1743, 147112), (1813, 141432), (1988, 128982), (1992, 128723), (2072, 123753), (2324, 110334), (2627, 97608), (2982, 85988), (3071, 83496), (3108, 82502), (3479, 73704), (3486, 73556), (3626, 70716), (3976, 64491), (4067, 63048), (4648, 55167), (5254, 48804), (5439, 47144), (5893, 43512), (5964, 42994), (6142, 41748), (6216, 41251), (6958, 36852), (6972, 36778), (7252, 35358), (7881, 32536), (8134, 31524), (9213, 27832), (10437, 24568), (10508, 24402), (10878, 23572), (11786, 21756), (11928, 21497), (12201, 21016), (12284, 20874), (13916, 18426), (13944, 18389), (14504, 17679), (15762, 16268)]