20204120

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21961}}^1$

素因数の和:21995

約数の個数: 32

約数和(自身を含む): 47437920

約数和(自身を除く): 27233800

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 21961, 43922, 87844, 109805, 175688, 219610, 439220, 505103, 878440, 1010206, 2020412, 2525515, 4040824, 5051030, 10102060, 20204120]

約数ペア:

[(1, 20204120), (2, 10102060), (4, 5051030), (5, 4040824), (8, 2525515), (10, 2020412), (20, 1010206), (23, 878440), (40, 505103), (46, 439220), (92, 219610), (115, 175688), (184, 109805), (230, 87844), (460, 43922), (920, 21961)]