821711968

素因数分解:

$2^5\times 7^2\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:178

約数の個数: 216

約数和(自身を含む): 2132019792

約数和(自身を除く): 1310307824

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 49, 56, 61, 71, 77, 88, 98, 112, 121, 122, 142, 154, 176, 196, 224, 242, 244, 284, 308, 352, 392, 427, 484, 488, 497, 539, 568, 616, 671, 781, 784, 847, 854, 968, 976, 994, 1078, 1136, 1232, 1342, 1562, 1568, 1694, 1708, 1936, 1952, 1988, 2156, 2272, 2464, 2684, 2989, 3124, 3388, 3416, 3479, 3872, 3976, 4312, 4331, 4697, 5368, 5467, 5929, 5978, 6248, 6776, 6832, 6958, 7381, 7952, 8591, 8624, 8662, 9394, 10736, 10934, 11858, 11956, 12496, 13552, 13664, 13916, 14762, 15904, 17182, 17248, 17324, 18788, 21472, 21868, 23716, 23912, 24992, 27104, 27832, 29524, 30317, 32879, 34364, 34648, 37576, 38269, 43736, 47432, 47641, 47824, 51667, 55664, 59048, 60137, 60634, 65758, 68728, 69296, 75152, 76538, 87472, 94864, 95282, 95648, 103334, 111328, 118096, 120274, 121268, 131516, 137456, 138592, 150304, 153076, 174944, 189728, 190564, 206668, 212219, 236192, 240548, 242536, 263032, 274912, 306152, 333487, 361669, 381128, 413336, 420959, 424438, 481096, 485072, 524051, 526064, 612304, 666974, 723338, 762256, 826672, 841918, 848876, 962192, 970144, 1048102, 1052128, 1224608, 1333948, 1446676, 1524512, 1653344, 1683836, 1697752, 1924384, 2096204, 2334409, 2667896, 2893352, 3367672, 3395504, 3668357, 4192408, 4668818, 5335792, 5786704, 6735344, 6791008, 7336714, 8384816, 9337636, 10671584, 11573408, 13470688, 14673428, 16769632, 18675272, 25678499, 29346856, 37350544, 51356998, 58693712, 74701088, 102713996, 117387424, 205427992, 410855984, 821711968]

約数ペア:

[(1, 821711968), (2, 410855984), (4, 205427992), (7, 117387424), (8, 102713996), (11, 74701088), (14, 58693712), (16, 51356998), (22, 37350544), (28, 29346856), (32, 25678499), (44, 18675272), (49, 16769632), (56, 14673428), (61, 13470688), (71, 11573408), (77, 10671584), (88, 9337636), (98, 8384816), (112, 7336714), (121, 6791008), (122, 6735344), (142, 5786704), (154, 5335792), (176, 4668818), (196, 4192408), (224, 3668357), (242, 3395504), (244, 3367672), (284, 2893352), (308, 2667896), (352, 2334409), (392, 2096204), (427, 1924384), (484, 1697752), (488, 1683836), (497, 1653344), (539, 1524512), (568, 1446676), (616, 1333948), (671, 1224608), (781, 1052128), (784, 1048102), (847, 970144), (854, 962192), (968, 848876), (976, 841918), (994, 826672), (1078, 762256), (1136, 723338), (1232, 666974), (1342, 612304), (1562, 526064), (1568, 524051), (1694, 485072), (1708, 481096), (1936, 424438), (1952, 420959), (1988, 413336), (2156, 381128), (2272, 361669), (2464, 333487), (2684, 306152), (2989, 274912), (3124, 263032), (3388, 242536), (3416, 240548), (3479, 236192), (3872, 212219), (3976, 206668), (4312, 190564), (4331, 189728), (4697, 174944), (5368, 153076), (5467, 150304), (5929, 138592), (5978, 137456), (6248, 131516), (6776, 121268), (6832, 120274), (6958, 118096), (7381, 111328), (7952, 103334), (8591, 95648), (8624, 95282), (8662, 94864), (9394, 87472), (10736, 76538), (10934, 75152), (11858, 69296), (11956, 68728), (12496, 65758), (13552, 60634), (13664, 60137), (13916, 59048), (14762, 55664), (15904, 51667), (17182, 47824), (17248, 47641), (17324, 47432), (18788, 43736), (21472, 38269), (21868, 37576), (23716, 34648), (23912, 34364), (24992, 32879), (27104, 30317), (27832, 29524)]