OFFSET
1,1
EXAMPLE
n=39: m=A068418(39)=130141440, sigma[m]-m=405550080, m-Phi[m]=101387520, quotient=4=a(39).
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Labos Elemer, Apr 05 2002
EXTENSIONS
a(47)-a(68) from Donovan Johnson, May 27 2011
STATUS
approved