20909589020

素因数分解:

$2^2\times 5^1\times {\mathrm{859}}^1\times {\mathrm{1217089}}^1$

素因数の和:1217957

約数の個数: 24

約数和(自身を含む): 43961290800

約数和(自身を除く): 23051701780

約数列:

[1, 2, 4, 5, 10, 20, 859, 1718, 3436, 4295, 8590, 17180, 1217089, 2434178, 4868356, 6085445, 12170890, 24341780, 1045479451, 2090958902, 4181917804, 5227397255, 10454794510, 20909589020]

約数ペア:

[(1, 20909589020), (2, 10454794510), (4, 5227397255), (5, 4181917804), (10, 2090958902), (20, 1045479451), (859, 24341780), (1718, 12170890), (3436, 6085445), (4295, 4868356), (8590, 2434178), (17180, 1217089)]