257327616

素因数分解:

$2^9\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{263}}^1$

素因数の和:311

約数の個数: 240

約数和(自身を含む): 862069824

約数和(自身を除く): 604742208

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 32, 39, 42, 48, 49, 52, 56, 64, 78, 84, 91, 96, 98, 104, 112, 128, 147, 156, 168, 182, 192, 196, 208, 224, 256, 263, 273, 294, 312, 336, 364, 384, 392, 416, 448, 512, 526, 546, 588, 624, 637, 672, 728, 768, 784, 789, 832, 896, 1052, 1092, 1176, 1248, 1274, 1344, 1456, 1536, 1568, 1578, 1664, 1792, 1841, 1911, 2104, 2184, 2352, 2496, 2548, 2688, 2912, 3136, 3156, 3328, 3419, 3584, 3682, 3822, 4208, 4368, 4704, 4992, 5096, 5376, 5523, 5824, 6272, 6312, 6656, 6838, 7364, 7644, 8416, 8736, 9408, 9984, 10192, 10257, 10752, 11046, 11648, 12544, 12624, 12887, 13676, 14728, 15288, 16832, 17472, 18816, 19968, 20384, 20514, 22092, 23296, 23933, 25088, 25248, 25774, 27352, 29456, 30576, 33664, 34944, 37632, 38661, 40768, 41028, 44184, 46592, 47866, 50496, 51548, 54704, 58912, 61152, 67328, 69888, 71799, 75264, 77322, 81536, 82056, 88368, 95732, 100992, 103096, 109408, 117824, 122304, 134656, 139776, 143598, 154644, 163072, 164112, 167531, 176736, 191464, 201984, 206192, 218816, 235648, 244608, 287196, 309288, 326144, 328224, 335062, 353472, 382928, 403968, 412384, 437632, 471296, 489216, 502593, 574392, 618576, 656448, 670124, 706944, 765856, 824768, 875264, 942592, 978432, 1005186, 1148784, 1237152, 1312896, 1340248, 1413888, 1531712, 1649536, 1750528, 2010372, 2297568, 2474304, 2625792, 2680496, 2827776, 3063424, 3299072, 4020744, 4595136, 4948608, 5251584, 5360992, 6126848, 6598144, 8041488, 9190272, 9897216, 10721984, 12253696, 16082976, 18380544, 19794432, 21443968, 32165952, 36761088, 42887936, 64331904, 85775872, 128663808, 257327616]

約数ペア:

[(1, 257327616), (2, 128663808), (3, 85775872), (4, 64331904), (6, 42887936), (7, 36761088), (8, 32165952), (12, 21443968), (13, 19794432), (14, 18380544), (16, 16082976), (21, 12253696), (24, 10721984), (26, 9897216), (28, 9190272), (32, 8041488), (39, 6598144), (42, 6126848), (48, 5360992), (49, 5251584), (52, 4948608), (56, 4595136), (64, 4020744), (78, 3299072), (84, 3063424), (91, 2827776), (96, 2680496), (98, 2625792), (104, 2474304), (112, 2297568), (128, 2010372), (147, 1750528), (156, 1649536), (168, 1531712), (182, 1413888), (192, 1340248), (196, 1312896), (208, 1237152), (224, 1148784), (256, 1005186), (263, 978432), (273, 942592), (294, 875264), (312, 824768), (336, 765856), (364, 706944), (384, 670124), (392, 656448), (416, 618576), (448, 574392), (512, 502593), (526, 489216), (546, 471296), (588, 437632), (624, 412384), (637, 403968), (672, 382928), (728, 353472), (768, 335062), (784, 328224), (789, 326144), (832, 309288), (896, 287196), (1052, 244608), (1092, 235648), (1176, 218816), (1248, 206192), (1274, 201984), (1344, 191464), (1456, 176736), (1536, 167531), (1568, 164112), (1578, 163072), (1664, 154644), (1792, 143598), (1841, 139776), (1911, 134656), (2104, 122304), (2184, 117824), (2352, 109408), (2496, 103096), (2548, 100992), (2688, 95732), (2912, 88368), (3136, 82056), (3156, 81536), (3328, 77322), (3419, 75264), (3584, 71799), (3682, 69888), (3822, 67328), (4208, 61152), (4368, 58912), (4704, 54704), (4992, 51548), (5096, 50496), (5376, 47866), (5523, 46592), (5824, 44184), (6272, 41028), (6312, 40768), (6656, 38661), (6838, 37632), (7364, 34944), (7644, 33664), (8416, 30576), (8736, 29456), (9408, 27352), (9984, 25774), (10192, 25248), (10257, 25088), (10752, 23933), (11046, 23296), (11648, 22092), (12544, 20514), (12624, 20384), (12887, 19968), (13676, 18816), (14728, 17472), (15288, 16832)]