19799600

素因数分解:

$2^4\times 5^2\times {\mathrm{49499}}^1$

素因数の和:49517

約数の個数: 30

約数和(自身を含む): 47569500

約数和(自身を除く): 27769900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 49499, 98998, 197996, 247495, 395992, 494990, 791984, 989980, 1237475, 1979960, 2474950, 3959920, 4949900, 9899800, 19799600]

約数ペア:

[(1, 19799600), (2, 9899800), (4, 4949900), (5, 3959920), (8, 2474950), (10, 1979960), (16, 1237475), (20, 989980), (25, 791984), (40, 494990), (50, 395992), (80, 247495), (100, 197996), (200, 98998), (400, 49499)]