20409728

素因数分解:

$2^7\times {\mathrm{317}}^1\times {\mathrm{503}}^1$

素因数の和:834

約数の個数: 32

約数和(自身を含む): 40869360

約数和(自身を除く): 20459632

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 317, 503, 634, 1006, 1268, 2012, 2536, 4024, 5072, 8048, 10144, 16096, 20288, 32192, 40576, 64384, 159451, 318902, 637804, 1275608, 2551216, 5102432, 10204864, 20409728]

約数ペア:

[(1, 20409728), (2, 10204864), (4, 5102432), (8, 2551216), (16, 1275608), (32, 637804), (64, 318902), (128, 159451), (317, 64384), (503, 40576), (634, 32192), (1006, 20288), (1268, 16096), (2012, 10144), (2536, 8048), (4024, 5072)]