20512995860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{146521399}}^1$

素因数の和:146521415

約数の個数: 24

約数和(自身を含む): 49231190400

約数和(自身を除く): 28718194540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 146521399, 293042798, 586085596, 732606995, 1025649793, 1465213990, 2051299586, 2930427980, 4102599172, 5128248965, 10256497930, 20512995860]

約数ペア:

[(1, 20512995860), (2, 10256497930), (4, 5128248965), (5, 4102599172), (7, 2930427980), (10, 2051299586), (14, 1465213990), (20, 1025649793), (28, 732606995), (35, 586085596), (70, 293042798), (140, 146521399)]