1281043456

素因数分解:

$2^{10}\times 7^2\times {\mathrm{11}}^2\times {\mathrm{211}}^1$

素因数の和:267

約数の個数: 198

約数和(自身を含む): 3289881084

約数和(自身を除く): 2008837628

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 49, 56, 64, 77, 88, 98, 112, 121, 128, 154, 176, 196, 211, 224, 242, 256, 308, 352, 392, 422, 448, 484, 512, 539, 616, 704, 784, 844, 847, 896, 968, 1024, 1078, 1232, 1408, 1477, 1568, 1688, 1694, 1792, 1936, 2156, 2321, 2464, 2816, 2954, 3136, 3376, 3388, 3584, 3872, 4312, 4642, 4928, 5632, 5908, 5929, 6272, 6752, 6776, 7168, 7744, 8624, 9284, 9856, 10339, 11264, 11816, 11858, 12544, 13504, 13552, 15488, 16247, 17248, 18568, 19712, 20678, 23632, 23716, 25088, 25531, 27008, 27104, 30976, 32494, 34496, 37136, 39424, 41356, 47264, 47432, 50176, 51062, 54016, 54208, 61952, 64988, 68992, 74272, 78848, 82712, 94528, 94864, 102124, 108032, 108416, 113729, 123904, 129976, 137984, 148544, 165424, 178717, 189056, 189728, 204248, 216064, 216832, 227458, 259952, 275968, 297088, 330848, 357434, 378112, 379456, 408496, 433664, 454916, 519904, 551936, 594176, 661696, 714868, 756224, 758912, 816992, 867328, 909832, 1039808, 1188352, 1251019, 1323392, 1429736, 1512448, 1517824, 1633984, 1819664, 2079616, 2376704, 2502038, 2646784, 2859472, 3035648, 3267968, 3639328, 4159232, 5004076, 5293568, 5718944, 6071296, 6535936, 7278656, 8318464, 10008152, 10587136, 11437888, 13071872, 14557312, 16636928, 20016304, 22875776, 26143744, 29114624, 40032608, 45751552, 58229248, 80065216, 91503104, 116458496, 160130432, 183006208, 320260864, 640521728, 1281043456]

約数ペア:

[(1, 1281043456), (2, 640521728), (4, 320260864), (7, 183006208), (8, 160130432), (11, 116458496), (14, 91503104), (16, 80065216), (22, 58229248), (28, 45751552), (32, 40032608), (44, 29114624), (49, 26143744), (56, 22875776), (64, 20016304), (77, 16636928), (88, 14557312), (98, 13071872), (112, 11437888), (121, 10587136), (128, 10008152), (154, 8318464), (176, 7278656), (196, 6535936), (211, 6071296), (224, 5718944), (242, 5293568), (256, 5004076), (308, 4159232), (352, 3639328), (392, 3267968), (422, 3035648), (448, 2859472), (484, 2646784), (512, 2502038), (539, 2376704), (616, 2079616), (704, 1819664), (784, 1633984), (844, 1517824), (847, 1512448), (896, 1429736), (968, 1323392), (1024, 1251019), (1078, 1188352), (1232, 1039808), (1408, 909832), (1477, 867328), (1568, 816992), (1688, 758912), (1694, 756224), (1792, 714868), (1936, 661696), (2156, 594176), (2321, 551936), (2464, 519904), (2816, 454916), (2954, 433664), (3136, 408496), (3376, 379456), (3388, 378112), (3584, 357434), (3872, 330848), (4312, 297088), (4642, 275968), (4928, 259952), (5632, 227458), (5908, 216832), (5929, 216064), (6272, 204248), (6752, 189728), (6776, 189056), (7168, 178717), (7744, 165424), (8624, 148544), (9284, 137984), (9856, 129976), (10339, 123904), (11264, 113729), (11816, 108416), (11858, 108032), (12544, 102124), (13504, 94864), (13552, 94528), (15488, 82712), (16247, 78848), (17248, 74272), (18568, 68992), (19712, 64988), (20678, 61952), (23632, 54208), (23716, 54016), (25088, 51062), (25531, 50176), (27008, 47432), (27104, 47264), (30976, 41356), (32494, 39424), (34496, 37136)]