257414144

素因数分解:

$2^{10}\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{317}}^1$

素因数の和:411

約数の個数: 88

約数和(自身を含む): 565021128

約数和(自身を除く): 307606984

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 61, 64, 104, 122, 128, 208, 244, 256, 317, 416, 488, 512, 634, 793, 832, 976, 1024, 1268, 1586, 1664, 1952, 2536, 3172, 3328, 3904, 4121, 5072, 6344, 6656, 7808, 8242, 10144, 12688, 13312, 15616, 16484, 19337, 20288, 25376, 31232, 32968, 38674, 40576, 50752, 62464, 65936, 77348, 81152, 101504, 131872, 154696, 162304, 203008, 251381, 263744, 309392, 324608, 406016, 502762, 527488, 618784, 812032, 1005524, 1054976, 1237568, 2011048, 2109952, 2475136, 4022096, 4219904, 4950272, 8044192, 9900544, 16088384, 19801088, 32176768, 64353536, 128707072, 257414144]

約数ペア:

[(1, 257414144), (2, 128707072), (4, 64353536), (8, 32176768), (13, 19801088), (16, 16088384), (26, 9900544), (32, 8044192), (52, 4950272), (61, 4219904), (64, 4022096), (104, 2475136), (122, 2109952), (128, 2011048), (208, 1237568), (244, 1054976), (256, 1005524), (317, 812032), (416, 618784), (488, 527488), (512, 502762), (634, 406016), (793, 324608), (832, 309392), (976, 263744), (1024, 251381), (1268, 203008), (1586, 162304), (1664, 154696), (1952, 131872), (2536, 101504), (3172, 81152), (3328, 77348), (3904, 65936), (4121, 62464), (5072, 50752), (6344, 40576), (6656, 38674), (7808, 32968), (8242, 31232), (10144, 25376), (12688, 20288), (13312, 19337), (15616, 16484)]