257209728

素因数分解:

$2^7\times 3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1$

素因数の和:137

約数の個数: 192

約数和(自身を含む): 765722160

約数和(自身を除く): 508512432

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 31, 32, 34, 41, 48, 51, 62, 64, 68, 82, 93, 96, 102, 123, 124, 128, 136, 164, 186, 192, 204, 246, 248, 272, 328, 372, 384, 408, 492, 496, 527, 544, 656, 697, 744, 816, 961, 984, 992, 1054, 1088, 1271, 1312, 1394, 1488, 1581, 1632, 1922, 1968, 1984, 2091, 2108, 2176, 2542, 2624, 2788, 2883, 2976, 3162, 3264, 3813, 3844, 3936, 3968, 4182, 4216, 5084, 5248, 5576, 5766, 5952, 6324, 6528, 7626, 7688, 7872, 8364, 8432, 10168, 11152, 11532, 11904, 12648, 15252, 15376, 15744, 16337, 16728, 16864, 20336, 21607, 22304, 23064, 25296, 30504, 30752, 32674, 33456, 33728, 39401, 40672, 43214, 44608, 46128, 49011, 50592, 61008, 61504, 64821, 65348, 66912, 67456, 78802, 81344, 86428, 89216, 92256, 98022, 101184, 118203, 122016, 123008, 129642, 130696, 133824, 157604, 162688, 172856, 184512, 196044, 202368, 236406, 244032, 259284, 261392, 267648, 315208, 345712, 369024, 392088, 472812, 488064, 518568, 522784, 630416, 669817, 691424, 784176, 945624, 1037136, 1045568, 1260832, 1339634, 1382848, 1568352, 1891248, 2009451, 2074272, 2091136, 2521664, 2679268, 2765696, 3136704, 3782496, 4018902, 4148544, 5043328, 5358536, 6273408, 7564992, 8037804, 8297088, 10717072, 15129984, 16075608, 21434144, 32151216, 42868288, 64302432, 85736576, 128604864, 257209728]

約数ペア:

[(1, 257209728), (2, 128604864), (3, 85736576), (4, 64302432), (6, 42868288), (8, 32151216), (12, 21434144), (16, 16075608), (17, 15129984), (24, 10717072), (31, 8297088), (32, 8037804), (34, 7564992), (41, 6273408), (48, 5358536), (51, 5043328), (62, 4148544), (64, 4018902), (68, 3782496), (82, 3136704), (93, 2765696), (96, 2679268), (102, 2521664), (123, 2091136), (124, 2074272), (128, 2009451), (136, 1891248), (164, 1568352), (186, 1382848), (192, 1339634), (204, 1260832), (246, 1045568), (248, 1037136), (272, 945624), (328, 784176), (372, 691424), (384, 669817), (408, 630416), (492, 522784), (496, 518568), (527, 488064), (544, 472812), (656, 392088), (697, 369024), (744, 345712), (816, 315208), (961, 267648), (984, 261392), (992, 259284), (1054, 244032), (1088, 236406), (1271, 202368), (1312, 196044), (1394, 184512), (1488, 172856), (1581, 162688), (1632, 157604), (1922, 133824), (1968, 130696), (1984, 129642), (2091, 123008), (2108, 122016), (2176, 118203), (2542, 101184), (2624, 98022), (2788, 92256), (2883, 89216), (2976, 86428), (3162, 81344), (3264, 78802), (3813, 67456), (3844, 66912), (3936, 65348), (3968, 64821), (4182, 61504), (4216, 61008), (5084, 50592), (5248, 49011), (5576, 46128), (5766, 44608), (5952, 43214), (6324, 40672), (6528, 39401), (7626, 33728), (7688, 33456), (7872, 32674), (8364, 30752), (8432, 30504), (10168, 25296), (11152, 23064), (11532, 22304), (11904, 21607), (12648, 20336), (15252, 16864), (15376, 16728), (15744, 16337)]