258392288

素因数分解:

$2^5\times 7^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:317

約数の個数: 144

約数和(自身を含む): 657756288

約数和(自身を除く): 399364000

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 49, 56, 71, 77, 88, 98, 112, 142, 154, 176, 196, 211, 224, 284, 308, 352, 392, 422, 497, 539, 568, 616, 781, 784, 844, 994, 1078, 1136, 1232, 1477, 1562, 1568, 1688, 1988, 2156, 2272, 2321, 2464, 2954, 3124, 3376, 3479, 3976, 4312, 4642, 5467, 5908, 6248, 6752, 6958, 7952, 8624, 9284, 10339, 10934, 11816, 12496, 13916, 14981, 15904, 16247, 17248, 18568, 20678, 21868, 23632, 24992, 27832, 29962, 32494, 37136, 38269, 41356, 43736, 47264, 55664, 59924, 64988, 74272, 76538, 82712, 87472, 104867, 111328, 113729, 119848, 129976, 153076, 164791, 165424, 174944, 209734, 227458, 239696, 259952, 306152, 329582, 330848, 419468, 454916, 479392, 519904, 612304, 659164, 734069, 838936, 909832, 1153537, 1224608, 1318328, 1468138, 1677872, 1819664, 2307074, 2636656, 2936276, 3355744, 3639328, 4614148, 5273312, 5872552, 8074759, 9228296, 11745104, 16149518, 18456592, 23490208, 32299036, 36913184, 64598072, 129196144, 258392288]

約数ペア:

[(1, 258392288), (2, 129196144), (4, 64598072), (7, 36913184), (8, 32299036), (11, 23490208), (14, 18456592), (16, 16149518), (22, 11745104), (28, 9228296), (32, 8074759), (44, 5872552), (49, 5273312), (56, 4614148), (71, 3639328), (77, 3355744), (88, 2936276), (98, 2636656), (112, 2307074), (142, 1819664), (154, 1677872), (176, 1468138), (196, 1318328), (211, 1224608), (224, 1153537), (284, 909832), (308, 838936), (352, 734069), (392, 659164), (422, 612304), (497, 519904), (539, 479392), (568, 454916), (616, 419468), (781, 330848), (784, 329582), (844, 306152), (994, 259952), (1078, 239696), (1136, 227458), (1232, 209734), (1477, 174944), (1562, 165424), (1568, 164791), (1688, 153076), (1988, 129976), (2156, 119848), (2272, 113729), (2321, 111328), (2464, 104867), (2954, 87472), (3124, 82712), (3376, 76538), (3479, 74272), (3976, 64988), (4312, 59924), (4642, 55664), (5467, 47264), (5908, 43736), (6248, 41356), (6752, 38269), (6958, 37136), (7952, 32494), (8624, 29962), (9284, 27832), (10339, 24992), (10934, 23632), (11816, 21868), (12496, 20678), (13916, 18568), (14981, 17248), (15904, 16247)]