638909856

素因数分解:

$2^5\times 3^4\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{283}}^1$

素因数の和:385

約数の個数: 240

約数和(自身を含む): 2061015264

約数和(自身を除く): 1422105408

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 32, 36, 39, 48, 52, 54, 67, 72, 78, 81, 96, 104, 108, 117, 134, 144, 156, 162, 201, 208, 216, 234, 268, 283, 288, 312, 324, 351, 402, 416, 432, 468, 536, 566, 603, 624, 648, 702, 804, 849, 864, 871, 936, 1053, 1072, 1132, 1206, 1248, 1296, 1404, 1608, 1698, 1742, 1809, 1872, 2106, 2144, 2264, 2412, 2547, 2592, 2613, 2808, 3216, 3396, 3484, 3618, 3679, 3744, 4212, 4528, 4824, 5094, 5226, 5427, 5616, 6432, 6792, 6968, 7236, 7358, 7641, 7839, 8424, 9056, 9648, 10188, 10452, 10854, 11037, 11232, 13584, 13936, 14472, 14716, 15282, 15678, 16848, 18961, 19296, 20376, 20904, 21708, 22074, 22923, 23517, 27168, 27872, 28944, 29432, 30564, 31356, 33111, 33696, 37922, 40752, 41808, 43416, 44148, 45846, 47034, 56883, 57888, 58864, 61128, 62712, 66222, 70551, 75844, 81504, 83616, 86832, 88296, 91692, 94068, 99333, 113766, 117728, 122256, 125424, 132444, 141102, 151688, 170649, 173664, 176592, 183384, 188136, 198666, 227532, 244512, 246493, 250848, 264888, 282204, 297999, 303376, 341298, 353184, 366768, 376272, 397332, 455064, 492986, 511947, 529776, 564408, 595998, 606752, 682596, 733536, 739479, 752544, 794664, 910128, 985972, 1023894, 1059552, 1128816, 1191996, 1365192, 1478958, 1535841, 1589328, 1820256, 1971944, 2047788, 2218437, 2257632, 2383992, 2730384, 2957916, 3071682, 3178656, 3943888, 4095576, 4436874, 4767984, 5460768, 5915832, 6143364, 6655311, 7887776, 8191152, 8873748, 9535968, 11831664, 12286728, 13310622, 16382304, 17747496, 19965933, 23663328, 24573456, 26621244, 35494992, 39931866, 49146912, 53242488, 70989984, 79863732, 106484976, 159727464, 212969952, 319454928, 638909856]

約数ペア:

[(1, 638909856), (2, 319454928), (3, 212969952), (4, 159727464), (6, 106484976), (8, 79863732), (9, 70989984), (12, 53242488), (13, 49146912), (16, 39931866), (18, 35494992), (24, 26621244), (26, 24573456), (27, 23663328), (32, 19965933), (36, 17747496), (39, 16382304), (48, 13310622), (52, 12286728), (54, 11831664), (67, 9535968), (72, 8873748), (78, 8191152), (81, 7887776), (96, 6655311), (104, 6143364), (108, 5915832), (117, 5460768), (134, 4767984), (144, 4436874), (156, 4095576), (162, 3943888), (201, 3178656), (208, 3071682), (216, 2957916), (234, 2730384), (268, 2383992), (283, 2257632), (288, 2218437), (312, 2047788), (324, 1971944), (351, 1820256), (402, 1589328), (416, 1535841), (432, 1478958), (468, 1365192), (536, 1191996), (566, 1128816), (603, 1059552), (624, 1023894), (648, 985972), (702, 910128), (804, 794664), (849, 752544), (864, 739479), (871, 733536), (936, 682596), (1053, 606752), (1072, 595998), (1132, 564408), (1206, 529776), (1248, 511947), (1296, 492986), (1404, 455064), (1608, 397332), (1698, 376272), (1742, 366768), (1809, 353184), (1872, 341298), (2106, 303376), (2144, 297999), (2264, 282204), (2412, 264888), (2547, 250848), (2592, 246493), (2613, 244512), (2808, 227532), (3216, 198666), (3396, 188136), (3484, 183384), (3618, 176592), (3679, 173664), (3744, 170649), (4212, 151688), (4528, 141102), (4824, 132444), (5094, 125424), (5226, 122256), (5427, 117728), (5616, 113766), (6432, 99333), (6792, 94068), (6968, 91692), (7236, 88296), (7358, 86832), (7641, 83616), (7839, 81504), (8424, 75844), (9056, 70551), (9648, 66222), (10188, 62712), (10452, 61128), (10854, 58864), (11037, 57888), (11232, 56883), (13584, 47034), (13936, 45846), (14472, 44148), (14716, 43416), (15282, 41808), (15678, 40752), (16848, 37922), (18961, 33696), (19296, 33111), (20376, 31356), (20904, 30564), (21708, 29432), (22074, 28944), (22923, 27872), (23517, 27168)]