9999560

素因数分解:

$2^3\times 5^1\times {\mathrm{249989}}^1$

素因数の和:250000

約数の個数: 16

約数和(自身を含む): 22499100

約数和(自身を除く): 12499540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 249989, 499978, 999956, 1249945, 1999912, 2499890, 4999780, 9999560]

約数ペア:

[(1, 9999560), (2, 4999780), (4, 2499890), (5, 1999912), (8, 1249945), (10, 999956), (20, 499978), (40, 249989)]