39423920

素因数分解:

$2^4\times 5^1\times {\mathrm{492799}}^1$

素因数の和:492812

約数の個数: 20

約数和(自身を含む): 91660800

約数和(自身を除く): 52236880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 492799, 985598, 1971196, 2463995, 3942392, 4927990, 7884784, 9855980, 19711960, 39423920]

約数ペア:

[(1, 39423920), (2, 19711960), (4, 9855980), (5, 7884784), (8, 4927990), (10, 3942392), (16, 2463995), (20, 1971196), (40, 985598), (80, 492799)]