999800

素因数分解:

$2^3\times 5^2\times {\mathrm{4999}}^1$

素因数の和:5015

約数の個数: 24

約数和(自身を含む): 2325000

約数和(自身を除く): 1325200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 4999, 9998, 19996, 24995, 39992, 49990, 99980, 124975, 199960, 249950, 499900, 999800]

約数ペア:

[(1, 999800), (2, 499900), (4, 249950), (5, 199960), (8, 124975), (10, 99980), (20, 49990), (25, 39992), (40, 24995), (50, 19996), (100, 9998), (200, 4999)]