499000

素因数分解:

$2^3\times 5^3\times {\mathrm{499}}^1$

素因数の和:520

約数の個数: 32

約数和(自身を含む): 1170000

約数和(自身を除く): 671000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 499, 500, 998, 1000, 1996, 2495, 3992, 4990, 9980, 12475, 19960, 24950, 49900, 62375, 99800, 124750, 249500, 499000]

約数ペア:

[(1, 499000), (2, 249500), (4, 124750), (5, 99800), (8, 62375), (10, 49900), (20, 24950), (25, 19960), (40, 12475), (50, 9980), (100, 4990), (125, 3992), (200, 2495), (250, 1996), (499, 1000), (500, 998)]