257455744

素因数分解:

$2^7\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2$

素因数の和:119

約数の個数: 192

約数和(自身を含む): 680641920

約数和(自身を除く): 423186176

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 23, 26, 28, 31, 32, 46, 52, 56, 62, 64, 91, 92, 104, 112, 124, 128, 161, 182, 184, 208, 217, 224, 248, 299, 322, 364, 368, 403, 416, 434, 448, 496, 598, 644, 713, 728, 736, 806, 832, 868, 896, 961, 992, 1196, 1288, 1426, 1456, 1472, 1612, 1664, 1736, 1922, 1984, 2093, 2392, 2576, 2821, 2852, 2912, 2944, 3224, 3472, 3844, 3968, 4186, 4784, 4991, 5152, 5642, 5704, 5824, 6448, 6727, 6944, 7688, 8372, 9269, 9568, 9982, 10304, 11284, 11408, 11648, 12493, 12896, 13454, 13888, 15376, 16744, 18538, 19136, 19964, 20608, 22103, 22568, 22816, 24986, 25792, 26908, 27776, 30752, 33488, 37076, 38272, 39928, 44206, 45136, 45632, 49972, 51584, 53816, 61504, 64883, 66976, 74152, 79856, 87451, 88412, 90272, 91264, 99944, 107632, 123008, 129766, 133952, 148304, 154721, 159712, 174902, 176824, 180544, 199888, 215264, 259532, 267904, 287339, 296608, 309442, 319424, 349804, 353648, 361088, 399776, 430528, 519064, 574678, 593216, 618884, 638848, 699608, 707296, 799552, 861056, 1038128, 1149356, 1186432, 1237768, 1399216, 1414592, 1599104, 2011373, 2076256, 2298712, 2475536, 2798432, 2829184, 4022746, 4152512, 4597424, 4951072, 5596864, 8045492, 8305024, 9194848, 9902144, 11193728, 16090984, 18389696, 19804288, 32181968, 36779392, 64363936, 128727872, 257455744]

約数ペア:

[(1, 257455744), (2, 128727872), (4, 64363936), (7, 36779392), (8, 32181968), (13, 19804288), (14, 18389696), (16, 16090984), (23, 11193728), (26, 9902144), (28, 9194848), (31, 8305024), (32, 8045492), (46, 5596864), (52, 4951072), (56, 4597424), (62, 4152512), (64, 4022746), (91, 2829184), (92, 2798432), (104, 2475536), (112, 2298712), (124, 2076256), (128, 2011373), (161, 1599104), (182, 1414592), (184, 1399216), (208, 1237768), (217, 1186432), (224, 1149356), (248, 1038128), (299, 861056), (322, 799552), (364, 707296), (368, 699608), (403, 638848), (416, 618884), (434, 593216), (448, 574678), (496, 519064), (598, 430528), (644, 399776), (713, 361088), (728, 353648), (736, 349804), (806, 319424), (832, 309442), (868, 296608), (896, 287339), (961, 267904), (992, 259532), (1196, 215264), (1288, 199888), (1426, 180544), (1456, 176824), (1472, 174902), (1612, 159712), (1664, 154721), (1736, 148304), (1922, 133952), (1984, 129766), (2093, 123008), (2392, 107632), (2576, 99944), (2821, 91264), (2852, 90272), (2912, 88412), (2944, 87451), (3224, 79856), (3472, 74152), (3844, 66976), (3968, 64883), (4186, 61504), (4784, 53816), (4991, 51584), (5152, 49972), (5642, 45632), (5704, 45136), (5824, 44206), (6448, 39928), (6727, 38272), (6944, 37076), (7688, 33488), (8372, 30752), (9269, 27776), (9568, 26908), (9982, 25792), (10304, 24986), (11284, 22816), (11408, 22568), (11648, 22103), (12493, 20608), (12896, 19964), (13454, 19136), (13888, 18538), (15376, 16744)]