28052120

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{5119}}^1$

素因数の和:5267

約数の個数: 32

約数和(自身を含む): 63590400

約数和(自身を除く): 35538280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5119, 5480, 10238, 20476, 25595, 40952, 51190, 102380, 204760, 701303, 1402606, 2805212, 3506515, 5610424, 7013030, 14026060, 28052120]

約数ペア:

[(1, 28052120), (2, 14026060), (4, 7013030), (5, 5610424), (8, 3506515), (10, 2805212), (20, 1402606), (40, 701303), (137, 204760), (274, 102380), (548, 51190), (685, 40952), (1096, 25595), (1370, 20476), (2740, 10238), (5119, 5480)]