217312256

素因数分解:

$2^{10}\times 7^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:166

約数の個数: 132

約数和(自身を含む): 520855056

約数和(自身を除く): 303542800

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 61, 64, 71, 98, 112, 122, 128, 142, 196, 224, 244, 256, 284, 392, 427, 448, 488, 497, 512, 568, 784, 854, 896, 976, 994, 1024, 1136, 1568, 1708, 1792, 1952, 1988, 2272, 2989, 3136, 3416, 3479, 3584, 3904, 3976, 4331, 4544, 5978, 6272, 6832, 6958, 7168, 7808, 7952, 8662, 9088, 11956, 12544, 13664, 13916, 15616, 15904, 17324, 18176, 23912, 25088, 27328, 27832, 30317, 31232, 31808, 34648, 36352, 47824, 50176, 54656, 55664, 60634, 62464, 63616, 69296, 72704, 95648, 109312, 111328, 121268, 127232, 138592, 191296, 212219, 218624, 222656, 242536, 254464, 277184, 382592, 424438, 437248, 445312, 485072, 508928, 554368, 765184, 848876, 890624, 970144, 1108736, 1530368, 1697752, 1781248, 1940288, 2217472, 3060736, 3395504, 3562496, 3880576, 4434944, 6791008, 7761152, 13582016, 15522304, 27164032, 31044608, 54328064, 108656128, 217312256]

約数ペア:

[(1, 217312256), (2, 108656128), (4, 54328064), (7, 31044608), (8, 27164032), (14, 15522304), (16, 13582016), (28, 7761152), (32, 6791008), (49, 4434944), (56, 3880576), (61, 3562496), (64, 3395504), (71, 3060736), (98, 2217472), (112, 1940288), (122, 1781248), (128, 1697752), (142, 1530368), (196, 1108736), (224, 970144), (244, 890624), (256, 848876), (284, 765184), (392, 554368), (427, 508928), (448, 485072), (488, 445312), (497, 437248), (512, 424438), (568, 382592), (784, 277184), (854, 254464), (896, 242536), (976, 222656), (994, 218624), (1024, 212219), (1136, 191296), (1568, 138592), (1708, 127232), (1792, 121268), (1952, 111328), (1988, 109312), (2272, 95648), (2989, 72704), (3136, 69296), (3416, 63616), (3479, 62464), (3584, 60634), (3904, 55664), (3976, 54656), (4331, 50176), (4544, 47824), (5978, 36352), (6272, 34648), (6832, 31808), (6958, 31232), (7168, 30317), (7808, 27832), (7952, 27328), (8662, 25088), (9088, 23912), (11956, 18176), (12544, 17324), (13664, 15904), (13916, 15616)]