OFFSET
1,1
COMMENTS
Conjecture: the sequence is finite.
LINKS
Achim Flammenkamp, The Multiply Perfect Numbers Page (See here for the latest information about the search)
Eric Weisstein's World of Mathematics, Multiperfect numbers
EXAMPLE
a(1)= 1379454720 = 2^8*3*5*7*19*37*73;
sopfr(1379454720), with repetition = 160 = 2^5*5;
sopfr(1379454720), without repetition = 146 = 2*73.
CROSSREFS
KEYWORD
fini,nonn
AUTHOR
Sven Simon, Feb 19 2006
STATUS
approved