81405536

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{883}}^1$

素因数の和:1003

約数の個数: 48

約数和(自身を含む): 166630464

約数和(自身を除く): 85224928

約数列:

[1, 2, 4, 8, 16, 32, 43, 67, 86, 134, 172, 268, 344, 536, 688, 883, 1072, 1376, 1766, 2144, 2881, 3532, 5762, 7064, 11524, 14128, 23048, 28256, 37969, 46096, 59161, 75938, 92192, 118322, 151876, 236644, 303752, 473288, 607504, 946576, 1215008, 1893152, 2543923, 5087846, 10175692, 20351384, 40702768, 81405536]

約数ペア:

[(1, 81405536), (2, 40702768), (4, 20351384), (8, 10175692), (16, 5087846), (32, 2543923), (43, 1893152), (67, 1215008), (86, 946576), (134, 607504), (172, 473288), (268, 303752), (344, 236644), (536, 151876), (688, 118322), (883, 92192), (1072, 75938), (1376, 59161), (1766, 46096), (2144, 37969), (2881, 28256), (3532, 23048), (5762, 14128), (7064, 11524)]