20205560

素因数分解:

$2^3\times 5^1\times {\mathrm{505139}}^1$

素因数の和:505150

約数の個数: 16

約数和(自身を含む): 45462600

約数和(自身を除く): 25257040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 505139, 1010278, 2020556, 2525695, 4041112, 5051390, 10102780, 20205560]

約数ペア:

[(1, 20205560), (2, 10102780), (4, 5051390), (5, 4041112), (8, 2525695), (10, 2020556), (20, 1010278), (40, 505139)]