20536540

素因数分解:

$2^2\times 5^1\times {\mathrm{977}}^1\times {\mathrm{1051}}^1$

素因数の和:2037

約数の個数: 24

約数和(自身を含む): 43211952

約数和(自身を除く): 22675412

約数列:

[1, 2, 4, 5, 10, 20, 977, 1051, 1954, 2102, 3908, 4204, 4885, 5255, 9770, 10510, 19540, 21020, 1026827, 2053654, 4107308, 5134135, 10268270, 20536540]

約数ペア:

[(1, 20536540), (2, 10268270), (4, 5134135), (5, 4107308), (10, 2053654), (20, 1026827), (977, 21020), (1051, 19540), (1954, 10510), (2102, 9770), (3908, 5255), (4204, 4885)]