7919920

素因数分解:

$2^4\times 5^1\times {\mathrm{98999}}^1$

素因数の和:99012

約数の個数: 20

約数和(自身を含む): 18414000

約数和(自身を除く): 10494080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 98999, 197998, 395996, 494995, 791992, 989990, 1583984, 1979980, 3959960, 7919920]

約数ペア:

[(1, 7919920), (2, 3959960), (4, 1979980), (5, 1583984), (8, 989990), (10, 791992), (16, 494995), (20, 395996), (40, 197998), (80, 98999)]