990291456

素因数分解:

$2^9\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2791}}^1$

素因数の和:2833

約数の個数: 240

約数和(自身を含む): 3564557568

約数和(自身を除く): 2574266112

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 16, 18, 21, 22, 24, 28, 32, 33, 36, 42, 44, 48, 56, 63, 64, 66, 72, 77, 84, 88, 96, 99, 112, 126, 128, 132, 144, 154, 168, 176, 192, 198, 224, 231, 252, 256, 264, 288, 308, 336, 352, 384, 396, 448, 462, 504, 512, 528, 576, 616, 672, 693, 704, 768, 792, 896, 924, 1008, 1056, 1152, 1232, 1344, 1386, 1408, 1536, 1584, 1792, 1848, 2016, 2112, 2304, 2464, 2688, 2772, 2791, 2816, 3168, 3584, 3696, 4032, 4224, 4608, 4928, 5376, 5544, 5582, 5632, 6336, 7392, 8064, 8373, 8448, 9856, 10752, 11088, 11164, 12672, 14784, 16128, 16746, 16896, 19537, 19712, 22176, 22328, 25119, 25344, 29568, 30701, 32256, 33492, 39074, 39424, 44352, 44656, 50238, 50688, 58611, 59136, 61402, 66984, 78148, 88704, 89312, 92103, 100476, 117222, 118272, 122804, 133968, 156296, 175833, 177408, 178624, 184206, 200952, 214907, 234444, 245608, 267936, 276309, 312592, 351666, 354816, 357248, 368412, 401904, 429814, 468888, 491216, 535872, 552618, 625184, 644721, 703332, 714496, 736824, 803808, 859628, 937776, 982432, 1071744, 1105236, 1250368, 1289442, 1406664, 1428992, 1473648, 1607616, 1719256, 1875552, 1934163, 1964864, 2143488, 2210472, 2500736, 2578884, 2813328, 2947296, 3215232, 3438512, 3751104, 3868326, 3929728, 4286976, 4420944, 5001472, 5157768, 5626656, 5894592, 6430464, 6877024, 7502208, 7736652, 7859456, 8841888, 10002944, 10315536, 11253312, 11789184, 12860928, 13754048, 15004416, 15473304, 15718912, 17683776, 20631072, 22506624, 23578368, 27508096, 30008832, 30946608, 35367552, 41262144, 45013248, 47156736, 55016192, 61893216, 70735104, 82524288, 90026496, 110032384, 123786432, 141470208, 165048576, 247572864, 330097152, 495145728, 990291456]

約数ペア:

[(1, 990291456), (2, 495145728), (3, 330097152), (4, 247572864), (6, 165048576), (7, 141470208), (8, 123786432), (9, 110032384), (11, 90026496), (12, 82524288), (14, 70735104), (16, 61893216), (18, 55016192), (21, 47156736), (22, 45013248), (24, 41262144), (28, 35367552), (32, 30946608), (33, 30008832), (36, 27508096), (42, 23578368), (44, 22506624), (48, 20631072), (56, 17683776), (63, 15718912), (64, 15473304), (66, 15004416), (72, 13754048), (77, 12860928), (84, 11789184), (88, 11253312), (96, 10315536), (99, 10002944), (112, 8841888), (126, 7859456), (128, 7736652), (132, 7502208), (144, 6877024), (154, 6430464), (168, 5894592), (176, 5626656), (192, 5157768), (198, 5001472), (224, 4420944), (231, 4286976), (252, 3929728), (256, 3868326), (264, 3751104), (288, 3438512), (308, 3215232), (336, 2947296), (352, 2813328), (384, 2578884), (396, 2500736), (448, 2210472), (462, 2143488), (504, 1964864), (512, 1934163), (528, 1875552), (576, 1719256), (616, 1607616), (672, 1473648), (693, 1428992), (704, 1406664), (768, 1289442), (792, 1250368), (896, 1105236), (924, 1071744), (1008, 982432), (1056, 937776), (1152, 859628), (1232, 803808), (1344, 736824), (1386, 714496), (1408, 703332), (1536, 644721), (1584, 625184), (1792, 552618), (1848, 535872), (2016, 491216), (2112, 468888), (2304, 429814), (2464, 401904), (2688, 368412), (2772, 357248), (2791, 354816), (2816, 351666), (3168, 312592), (3584, 276309), (3696, 267936), (4032, 245608), (4224, 234444), (4608, 214907), (4928, 200952), (5376, 184206), (5544, 178624), (5582, 177408), (5632, 175833), (6336, 156296), (7392, 133968), (8064, 122804), (8373, 118272), (8448, 117222), (9856, 100476), (10752, 92103), (11088, 89312), (11164, 88704), (12672, 78148), (14784, 66984), (16128, 61402), (16746, 59136), (16896, 58611), (19537, 50688), (19712, 50238), (22176, 44656), (22328, 44352), (25119, 39424), (25344, 39074), (29568, 33492), (30701, 32256)]