A103189 - OEIS

%I #4 Jul 04 2014 13:41:38

%S 4,6,8,8,96,64,64,8,64,256,32,128,128,256,64

%N Number of divisors of prime p concatenated p times.

%e Number of divisors of 22 is 4, so the first term is 4.

%e Number of divisors of 333 is 6, so the second term is 6.

%e Number of divisors of 55555 is 8, so the third term is 8.

%t Table[DivisorSigma[0,FromDigits[Flatten[IntegerDigits/@Table[Prime[n],{Prime[n]}]]]],{n,15}] (* _Harvey P. Dale_, Jul 04 2014 *)

%K nonn,base

%O 1,1

%A _Parthasarathy Nambi_, Mar 18 2005

%E More terms from _Harvey P. Dale_, Jul 04 2014