39968560

素因数分解:

$2^4\times 5^1\times {\mathrm{499607}}^1$

素因数の和:499620

約数の個数: 20

約数和(自身を含む): 92927088

約数和(自身を除く): 52958528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 499607, 999214, 1998428, 2498035, 3996856, 4996070, 7993712, 9992140, 19984280, 39968560]

約数ペア:

[(1, 39968560), (2, 19984280), (4, 9992140), (5, 7993712), (8, 4996070), (10, 3996856), (16, 2498035), (20, 1998428), (40, 999214), (80, 499607)]