OFFSET
1,1
LINKS
Eric Weisstein's World of Mathematics, Superabundant Number.
EXAMPLE
Sum of all 1-digit superabundant numbers is 1 + 2 + 4 + 6 = 13.
Sum of all 2-digit superabundant numbers is 12 + 24 + 36 + 48 + 60 = 180.
Sum of all 3-digit superabundant numbers is 120 + 180 + 240 + 360 + 720 + 840 = 2460.
CROSSREFS
KEYWORD
nonn,base,less
AUTHOR
Parthasarathy Nambi, Nov 07 2007
EXTENSIONS
More terms from Amiram Eldar, Nov 30 2019
STATUS
approved