799600

素因数分解:

$2^4\times 5^2\times {\mathrm{1999}}^1$

素因数の和:2017

約数の個数: 30

約数和(自身を含む): 1922000

約数和(自身を除く): 1122400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 1999, 3998, 7996, 9995, 15992, 19990, 31984, 39980, 49975, 79960, 99950, 159920, 199900, 399800, 799600]

約数ペア:

[(1, 799600), (2, 399800), (4, 199900), (5, 159920), (8, 99950), (10, 79960), (16, 49975), (20, 39980), (25, 31984), (40, 19990), (50, 15992), (80, 9995), (100, 7996), (200, 3998), (400, 1999)]