Does there exist abundancy?

Number Theory Level 4

Find the least odd abundant number?

Details and Assumptions

A number $n$ is called Abundant Number if $\sigma(n)>2n$

If you think that there is no odd abundant number answer $0$

1 solution

Kalpok Guha
Apr 2, 2015

As the product of first 5 five odd integers. $1*3*5*7*9=945$

I checked on $1*3=3$ , $1*3*5=15$ , $1*3*5*7=105$

Then it clicked on $1*3*5*7*9=945$

So the answer is $\boxed{945}$