3959920

素因数分解:

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

素因数の和:49512

約数の個数: 20

約数和(自身を含む): 9207000

約数和(自身を除く): 5247080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 49499, 98998, 197996, 247495, 395992, 494990, 791984, 989980, 1979960, 3959920]

約数ペア:

[(1, 3959920), (2, 1979960), (4, 989980), (5, 791984), (8, 494990), (10, 395992), (16, 247495), (20, 197996), (40, 98998), (80, 49499)]