16687780

素因数分解:

$2^2\times 5^1\times {\mathrm{743}}^1\times {\mathrm{1123}}^1$

素因数の和:1875

約数の個数: 24

約数和(自身を含む): 35122752

約数和(自身を除く): 18434972

約数列:

[1, 2, 4, 5, 10, 20, 743, 1123, 1486, 2246, 2972, 3715, 4492, 5615, 7430, 11230, 14860, 22460, 834389, 1668778, 3337556, 4171945, 8343890, 16687780]

約数ペア:

[(1, 16687780), (2, 8343890), (4, 4171945), (5, 3337556), (10, 1668778), (20, 834389), (743, 22460), (1123, 14860), (1486, 11230), (2246, 7430), (2972, 5615), (3715, 4492)]