28345790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{257689}}^1$

素因数の和:257707

約数の個数: 16

約数和(自身を含む): 55661040

約数和(自身を除く): 27315250

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 257689, 515378, 1288445, 2576890, 2834579, 5669158, 14172895, 28345790]

約数ペア:

[(1, 28345790), (2, 14172895), (5, 5669158), (10, 2834579), (11, 2576890), (22, 1288445), (55, 515378), (110, 257689)]