256451664

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:210

約数の個数: 240

約数和(自身を含む): 852723200

約数和(自身を除く): 596271536

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 17, 19, 21, 24, 28, 34, 38, 42, 48, 51, 56, 57, 68, 76, 84, 102, 112, 114, 119, 133, 136, 139, 152, 168, 204, 228, 238, 266, 272, 278, 289, 304, 323, 336, 357, 399, 408, 417, 456, 476, 532, 556, 578, 646, 714, 798, 816, 834, 867, 912, 952, 969, 973, 1064, 1112, 1156, 1292, 1428, 1596, 1668, 1734, 1904, 1938, 1946, 2023, 2128, 2224, 2261, 2312, 2363, 2584, 2641, 2856, 2919, 3192, 3336, 3468, 3876, 3892, 4046, 4522, 4624, 4726, 5168, 5282, 5491, 5712, 5838, 6069, 6384, 6672, 6783, 6936, 7089, 7752, 7784, 7923, 8092, 9044, 9452, 10564, 10982, 11676, 12138, 13566, 13872, 14178, 15504, 15568, 15846, 16184, 16473, 16541, 18088, 18487, 18904, 21128, 21964, 23352, 24276, 27132, 28356, 31692, 32368, 32946, 33082, 36176, 36974, 37808, 38437, 40171, 42256, 43928, 44897, 46704, 48552, 49623, 54264, 55461, 56712, 63384, 65892, 66164, 73948, 76874, 80342, 87856, 89794, 97104, 99246, 108528, 110922, 113424, 115311, 120513, 126768, 131784, 132328, 134691, 147896, 153748, 160684, 179588, 198492, 221844, 230622, 241026, 263568, 264656, 269382, 281197, 295792, 307496, 314279, 321368, 359176, 396984, 443688, 461244, 482052, 538764, 562394, 614992, 628558, 642736, 718352, 763249, 793968, 843591, 887376, 922488, 942837, 964104, 1077528, 1124788, 1257116, 1526498, 1687182, 1844976, 1885674, 1928208, 2155056, 2249576, 2289747, 2514232, 3052996, 3374364, 3771348, 4499152, 4579494, 5028464, 5342743, 6105992, 6748728, 7542696, 9158988, 10685486, 12211984, 13497456, 15085392, 16028229, 18317976, 21370972, 32056458, 36635952, 42741944, 64112916, 85483888, 128225832, 256451664]

約数ペア:

[(1, 256451664), (2, 128225832), (3, 85483888), (4, 64112916), (6, 42741944), (7, 36635952), (8, 32056458), (12, 21370972), (14, 18317976), (16, 16028229), (17, 15085392), (19, 13497456), (21, 12211984), (24, 10685486), (28, 9158988), (34, 7542696), (38, 6748728), (42, 6105992), (48, 5342743), (51, 5028464), (56, 4579494), (57, 4499152), (68, 3771348), (76, 3374364), (84, 3052996), (102, 2514232), (112, 2289747), (114, 2249576), (119, 2155056), (133, 1928208), (136, 1885674), (139, 1844976), (152, 1687182), (168, 1526498), (204, 1257116), (228, 1124788), (238, 1077528), (266, 964104), (272, 942837), (278, 922488), (289, 887376), (304, 843591), (323, 793968), (336, 763249), (357, 718352), (399, 642736), (408, 628558), (417, 614992), (456, 562394), (476, 538764), (532, 482052), (556, 461244), (578, 443688), (646, 396984), (714, 359176), (798, 321368), (816, 314279), (834, 307496), (867, 295792), (912, 281197), (952, 269382), (969, 264656), (973, 263568), (1064, 241026), (1112, 230622), (1156, 221844), (1292, 198492), (1428, 179588), (1596, 160684), (1668, 153748), (1734, 147896), (1904, 134691), (1938, 132328), (1946, 131784), (2023, 126768), (2128, 120513), (2224, 115311), (2261, 113424), (2312, 110922), (2363, 108528), (2584, 99246), (2641, 97104), (2856, 89794), (2919, 87856), (3192, 80342), (3336, 76874), (3468, 73948), (3876, 66164), (3892, 65892), (4046, 63384), (4522, 56712), (4624, 55461), (4726, 54264), (5168, 49623), (5282, 48552), (5491, 46704), (5712, 44897), (5838, 43928), (6069, 42256), (6384, 40171), (6672, 38437), (6783, 37808), (6936, 36974), (7089, 36176), (7752, 33082), (7784, 32946), (7923, 32368), (8092, 31692), (9044, 28356), (9452, 27132), (10564, 24276), (10982, 23352), (11676, 21964), (12138, 21128), (13566, 18904), (13872, 18487), (14178, 18088), (15504, 16541), (15568, 16473), (15846, 16184)]