19682660

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{20939}}^1$

素因数の和:20995

約数の個数: 24

約数和(自身を含む): 42215040

約数和(自身を除く): 22532380

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 20939, 41878, 83756, 104695, 209390, 418780, 984133, 1968266, 3936532, 4920665, 9841330, 19682660]

約数ペア:

[(1, 19682660), (2, 9841330), (4, 4920665), (5, 3936532), (10, 1968266), (20, 984133), (47, 418780), (94, 209390), (188, 104695), (235, 83756), (470, 41878), (940, 20939)]