278542656

素因数分解:

$2^6\times 3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:242

約数の個数: 252

約数和(自身を含む): 948598560

約数和(自身を除く): 670055904

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 49, 56, 63, 64, 71, 72, 84, 96, 98, 112, 126, 139, 142, 144, 147, 168, 192, 196, 213, 224, 252, 278, 284, 288, 294, 336, 392, 417, 426, 441, 448, 497, 504, 556, 568, 576, 588, 639, 672, 784, 834, 852, 882, 973, 994, 1008, 1112, 1136, 1176, 1251, 1278, 1344, 1491, 1568, 1668, 1704, 1764, 1946, 1988, 2016, 2224, 2272, 2352, 2502, 2556, 2919, 2982, 3136, 3336, 3408, 3479, 3528, 3892, 3976, 4032, 4448, 4473, 4544, 4704, 5004, 5112, 5838, 5964, 6672, 6811, 6816, 6958, 7056, 7784, 7952, 8757, 8896, 8946, 9408, 9869, 10008, 10224, 10437, 11676, 11928, 13344, 13622, 13632, 13916, 14112, 15568, 15904, 17514, 17892, 19738, 20016, 20433, 20448, 20874, 23352, 23856, 26688, 27244, 27832, 28224, 29607, 31136, 31311, 31808, 35028, 35784, 39476, 40032, 40866, 40896, 41748, 46704, 47712, 54488, 55664, 59214, 61299, 62272, 62622, 69083, 70056, 71568, 78952, 80064, 81732, 83496, 88821, 93408, 95424, 108976, 111328, 118428, 122598, 125244, 138166, 140112, 143136, 157904, 163464, 166992, 177642, 186816, 207249, 217952, 222656, 236856, 245196, 250488, 276332, 280224, 286272, 315808, 326928, 333984, 355284, 414498, 435904, 473712, 483581, 490392, 500976, 552664, 560448, 621747, 631616, 653856, 667968, 710568, 828996, 947424, 967162, 980784, 1001952, 1105328, 1243494, 1307712, 1421136, 1450743, 1657992, 1894848, 1934324, 1961568, 2003904, 2210656, 2486988, 2842272, 2901486, 3315984, 3868648, 3923136, 4352229, 4421312, 4973976, 5684544, 5802972, 6631968, 7737296, 8704458, 9947952, 11605944, 13263936, 15474592, 17408916, 19895904, 23211888, 30949184, 34817832, 39791808, 46423776, 69635664, 92847552, 139271328, 278542656]

約数ペア:

[(1, 278542656), (2, 139271328), (3, 92847552), (4, 69635664), (6, 46423776), (7, 39791808), (8, 34817832), (9, 30949184), (12, 23211888), (14, 19895904), (16, 17408916), (18, 15474592), (21, 13263936), (24, 11605944), (28, 9947952), (32, 8704458), (36, 7737296), (42, 6631968), (48, 5802972), (49, 5684544), (56, 4973976), (63, 4421312), (64, 4352229), (71, 3923136), (72, 3868648), (84, 3315984), (96, 2901486), (98, 2842272), (112, 2486988), (126, 2210656), (139, 2003904), (142, 1961568), (144, 1934324), (147, 1894848), (168, 1657992), (192, 1450743), (196, 1421136), (213, 1307712), (224, 1243494), (252, 1105328), (278, 1001952), (284, 980784), (288, 967162), (294, 947424), (336, 828996), (392, 710568), (417, 667968), (426, 653856), (441, 631616), (448, 621747), (497, 560448), (504, 552664), (556, 500976), (568, 490392), (576, 483581), (588, 473712), (639, 435904), (672, 414498), (784, 355284), (834, 333984), (852, 326928), (882, 315808), (973, 286272), (994, 280224), (1008, 276332), (1112, 250488), (1136, 245196), (1176, 236856), (1251, 222656), (1278, 217952), (1344, 207249), (1491, 186816), (1568, 177642), (1668, 166992), (1704, 163464), (1764, 157904), (1946, 143136), (1988, 140112), (2016, 138166), (2224, 125244), (2272, 122598), (2352, 118428), (2502, 111328), (2556, 108976), (2919, 95424), (2982, 93408), (3136, 88821), (3336, 83496), (3408, 81732), (3479, 80064), (3528, 78952), (3892, 71568), (3976, 70056), (4032, 69083), (4448, 62622), (4473, 62272), (4544, 61299), (4704, 59214), (5004, 55664), (5112, 54488), (5838, 47712), (5964, 46704), (6672, 41748), (6811, 40896), (6816, 40866), (6958, 40032), (7056, 39476), (7784, 35784), (7952, 35028), (8757, 31808), (8896, 31311), (8946, 31136), (9408, 29607), (9869, 28224), (10008, 27832), (10224, 27244), (10437, 26688), (11676, 23856), (11928, 23352), (13344, 20874), (13622, 20448), (13632, 20433), (13916, 20016), (14112, 19738), (15568, 17892), (15904, 17514)]