256687872

素因数分解:

$2^8\times 3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{359}}^1$

素因数の和:411

約数の個数: 216

約数和(自身を含む): 838857600

約数和(自身を除く): 582169728

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 19, 21, 24, 28, 32, 38, 42, 48, 49, 56, 57, 64, 76, 84, 96, 98, 112, 114, 128, 133, 147, 152, 168, 192, 196, 224, 228, 256, 266, 294, 304, 336, 359, 384, 392, 399, 448, 456, 532, 588, 608, 672, 718, 768, 784, 798, 896, 912, 931, 1064, 1077, 1176, 1216, 1344, 1436, 1568, 1596, 1792, 1824, 1862, 2128, 2154, 2352, 2432, 2513, 2688, 2793, 2872, 3136, 3192, 3648, 3724, 4256, 4308, 4704, 4864, 5026, 5376, 5586, 5744, 6272, 6384, 6821, 7296, 7448, 7539, 8512, 8616, 9408, 10052, 11172, 11488, 12544, 12768, 13642, 14592, 14896, 15078, 17024, 17232, 17591, 18816, 20104, 20463, 22344, 22976, 25536, 27284, 29792, 30156, 34048, 34464, 35182, 37632, 40208, 40926, 44688, 45952, 47747, 51072, 52773, 54568, 59584, 60312, 68928, 70364, 80416, 81852, 89376, 91904, 95494, 102144, 105546, 109136, 119168, 120624, 137856, 140728, 143241, 160832, 163704, 178752, 190988, 211092, 218272, 238336, 241248, 275712, 281456, 286482, 321664, 327408, 334229, 357504, 381976, 422184, 436544, 482496, 562912, 572964, 643328, 654816, 668458, 715008, 763952, 844368, 873088, 964992, 1002687, 1125824, 1145928, 1309632, 1336916, 1527904, 1688736, 1746176, 1929984, 2005374, 2251648, 2291856, 2619264, 2673832, 3055808, 3377472, 4010748, 4503296, 4583712, 5238528, 5347664, 6111616, 6754944, 8021496, 9167424, 10695328, 12223232, 13509888, 16042992, 18334848, 21390656, 32085984, 36669696, 42781312, 64171968, 85562624, 128343936, 256687872]

約数ペア:

[(1, 256687872), (2, 128343936), (3, 85562624), (4, 64171968), (6, 42781312), (7, 36669696), (8, 32085984), (12, 21390656), (14, 18334848), (16, 16042992), (19, 13509888), (21, 12223232), (24, 10695328), (28, 9167424), (32, 8021496), (38, 6754944), (42, 6111616), (48, 5347664), (49, 5238528), (56, 4583712), (57, 4503296), (64, 4010748), (76, 3377472), (84, 3055808), (96, 2673832), (98, 2619264), (112, 2291856), (114, 2251648), (128, 2005374), (133, 1929984), (147, 1746176), (152, 1688736), (168, 1527904), (192, 1336916), (196, 1309632), (224, 1145928), (228, 1125824), (256, 1002687), (266, 964992), (294, 873088), (304, 844368), (336, 763952), (359, 715008), (384, 668458), (392, 654816), (399, 643328), (448, 572964), (456, 562912), (532, 482496), (588, 436544), (608, 422184), (672, 381976), (718, 357504), (768, 334229), (784, 327408), (798, 321664), (896, 286482), (912, 281456), (931, 275712), (1064, 241248), (1077, 238336), (1176, 218272), (1216, 211092), (1344, 190988), (1436, 178752), (1568, 163704), (1596, 160832), (1792, 143241), (1824, 140728), (1862, 137856), (2128, 120624), (2154, 119168), (2352, 109136), (2432, 105546), (2513, 102144), (2688, 95494), (2793, 91904), (2872, 89376), (3136, 81852), (3192, 80416), (3648, 70364), (3724, 68928), (4256, 60312), (4308, 59584), (4704, 54568), (4864, 52773), (5026, 51072), (5376, 47747), (5586, 45952), (5744, 44688), (6272, 40926), (6384, 40208), (6821, 37632), (7296, 35182), (7448, 34464), (7539, 34048), (8512, 30156), (8616, 29792), (9408, 27284), (10052, 25536), (11172, 22976), (11488, 22344), (12544, 20463), (12768, 20104), (13642, 18816), (14592, 17591), (14896, 17232), (15078, 17024)]