20163544660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{519947}}^1$

素因数の和:520240

約数の個数: 48

約数和(自身を含む): 48567302784

約数和(自身を除く): 28403758124

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 277, 554, 1108, 1385, 1939, 2770, 3878, 5540, 7756, 9695, 19390, 38780, 519947, 1039894, 2079788, 2599735, 3639629, 5199470, 7279258, 10398940, 14558516, 18198145, 36396290, 72792580, 144025319, 288050638, 576101276, 720126595, 1008177233, 1440253190, 2016354466, 2880506380, 4032708932, 5040886165, 10081772330, 20163544660]

約数ペア:

[(1, 20163544660), (2, 10081772330), (4, 5040886165), (5, 4032708932), (7, 2880506380), (10, 2016354466), (14, 1440253190), (20, 1008177233), (28, 720126595), (35, 576101276), (70, 288050638), (140, 144025319), (277, 72792580), (554, 36396290), (1108, 18198145), (1385, 14558516), (1939, 10398940), (2770, 7279258), (3878, 5199470), (5540, 3639629), (7756, 2599735), (9695, 2079788), (19390, 1039894), (38780, 519947)]