20681540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{94007}}^1$

素因数の和:94027

約数の個数: 24

約数和(自身を含む): 47380032

約数和(自身を除く): 26698492

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 94007, 188014, 376028, 470035, 940070, 1034077, 1880140, 2068154, 4136308, 5170385, 10340770, 20681540]

約数ペア:

[(1, 20681540), (2, 10340770), (4, 5170385), (5, 4136308), (10, 2068154), (11, 1880140), (20, 1034077), (22, 940070), (44, 470035), (55, 376028), (110, 188014), (220, 94007)]