20901980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{95009}}^1$

素因数の和:95029

約数の個数: 24

約数和(自身を含む): 47885040

約数和(自身を除く): 26983060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 95009, 190018, 380036, 475045, 950090, 1045099, 1900180, 2090198, 4180396, 5225495, 10450990, 20901980]

約数ペア:

[(1, 20901980), (2, 10450990), (4, 5225495), (5, 4180396), (10, 2090198), (11, 1900180), (20, 1045099), (22, 950090), (44, 475045), (55, 380036), (110, 190018), (220, 95009)]