316619920

素因数分解:

$2^4\times 5^1\times {\mathrm{3957749}}^1$

素因数の和:3957762

約数の個数: 20

約数和(自身を含む): 736141500

約数和(自身を除く): 419521580

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3957749, 7915498, 15830996, 19788745, 31661992, 39577490, 63323984, 79154980, 158309960, 316619920]

約数ペア:

[(1, 316619920), (2, 158309960), (4, 79154980), (5, 63323984), (8, 39577490), (10, 31661992), (16, 19788745), (20, 15830996), (40, 7915498), (80, 3957749)]