1279231808

素因数分解:

$2^6\times {\mathrm{1031}}^1\times {\mathrm{19387}}^1$

素因数の和:20430

約数の個数: 28

約数和(自身を含む): 2541068832

約数和(自身を除く): 1261837024

約数列:

[1, 2, 4, 8, 16, 32, 64, 1031, 2062, 4124, 8248, 16496, 19387, 32992, 38774, 65984, 77548, 155096, 310192, 620384, 1240768, 19987997, 39975994, 79951988, 159903976, 319807952, 639615904, 1279231808]

約数ペア:

[(1, 1279231808), (2, 639615904), (4, 319807952), (8, 159903976), (16, 79951988), (32, 39975994), (64, 19987997), (1031, 1240768), (2062, 620384), (4124, 310192), (8248, 155096), (16496, 77548), (19387, 65984), (32992, 38774)]