199720120

素因数分解:

$2^3\times 5^1\times {\mathrm{4993003}}^1$

素因数の和:4993014

約数の個数: 16

約数和(自身を含む): 449370360

約数和(自身を除く): 249650240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4993003, 9986006, 19972012, 24965015, 39944024, 49930030, 99860060, 199720120]

約数ペア:

[(1, 199720120), (2, 99860060), (4, 49930030), (5, 39944024), (8, 24965015), (10, 19972012), (20, 9986006), (40, 4993003)]