31803920

素因数分解:

$2^4\times 5^1\times {\mathrm{397549}}^1$

素因数の和:397562

約数の個数: 20

約数和(自身を含む): 73944300

約数和(自身を除く): 42140380

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397549, 795098, 1590196, 1987745, 3180392, 3975490, 6360784, 7950980, 15901960, 31803920]

約数ペア:

[(1, 31803920), (2, 15901960), (4, 7950980), (5, 6360784), (8, 3975490), (10, 3180392), (16, 1987745), (20, 1590196), (40, 795098), (80, 397549)]