256435712

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{653}}^1$

素因数の和:743

約数の個数: 80

約数和(自身を含む): 561995280

約数和(自身を除く): 305559568

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 59, 64, 104, 118, 128, 208, 236, 256, 416, 472, 512, 653, 767, 832, 944, 1306, 1534, 1664, 1888, 2612, 3068, 3328, 3776, 5224, 6136, 6656, 7552, 8489, 10448, 12272, 15104, 16978, 20896, 24544, 30208, 33956, 38527, 41792, 49088, 67912, 77054, 83584, 98176, 135824, 154108, 167168, 196352, 271648, 308216, 334336, 392704, 500851, 543296, 616432, 1001702, 1086592, 1232864, 2003404, 2173184, 2465728, 4006808, 4346368, 4931456, 8013616, 9862912, 16027232, 19725824, 32054464, 64108928, 128217856, 256435712]

約数ペア:

[(1, 256435712), (2, 128217856), (4, 64108928), (8, 32054464), (13, 19725824), (16, 16027232), (26, 9862912), (32, 8013616), (52, 4931456), (59, 4346368), (64, 4006808), (104, 2465728), (118, 2173184), (128, 2003404), (208, 1232864), (236, 1086592), (256, 1001702), (416, 616432), (472, 543296), (512, 500851), (653, 392704), (767, 334336), (832, 308216), (944, 271648), (1306, 196352), (1534, 167168), (1664, 154108), (1888, 135824), (2612, 98176), (3068, 83584), (3328, 77054), (3776, 67912), (5224, 49088), (6136, 41792), (6656, 38527), (7552, 33956), (8489, 30208), (10448, 24544), (12272, 20896), (15104, 16978)]