[seqfan] Fwd: 34155

[Juan Arias de Reyna]

I send a message were Jan van de Lune informs that 34155 is the only odd number n
less than or equal 616 000 001 such that 

sum_{sqrt(n) <= d < n,  d|n} d = n.



Begin forwarded message:

> From: "J. van de Lune" <j.lune at chello.nl>
> Date: 16 de abril de 2012 23:31:07 GMT+02:00
> To: "Juan Arias de Reyna" <arias at us.es>
> Subject: 34155
> 
> Dear Juan,
>  
> Today I covered the range  [ 80 000 001 , 616 000 001 ]  in about  12  hours.
> I found no new " peculiar "  n.
> I will try to reach ( tomorrow )  n = 1 000 000 001.
>  
> Good luck and best regards,
>  
> Jan