28565020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{129841}}^1$

素因数の和:129861

約数の個数: 24

約数和(自身を含む): 65440368

約数和(自身を除く): 36875348

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 129841, 259682, 519364, 649205, 1298410, 1428251, 2596820, 2856502, 5713004, 7141255, 14282510, 28565020]

約数ペア:

[(1, 28565020), (2, 14282510), (4, 7141255), (5, 5713004), (10, 2856502), (11, 2596820), (20, 1428251), (22, 1298410), (44, 649205), (55, 519364), (110, 259682), (220, 129841)]