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A086487 Smallest number with n prime divisors such that the sum of the prime divisors is also a divisor, or 0 if no such number exists. 4

%I

%S 2,0,30,1122,2730,72930,870870,9699690,340510170,9592993410,

%T 265257422430,8624101075590,304250263527210,14299762385778870,

%U 1164365758518632670,43657174563782890110,1987938667108592728530

%N Smallest number with n prime divisors such that the sum of the prime divisors is also a divisor, or 0 if no such number exists.

%C First member of A086486 with n distinct prime factors. A001221(a(n)) = n; A008472(a(n)) divides a(n). - _David Wasserman_, Mar 09 2005

%e a(3) = 30. The prime divisors of 30 are 2,3 and 5 and 2+3+5 = 10, divides 30.

%Y Cf. A086486, A086488.

%Y Cf. A001221, A008472, A104465, A104466.

%K nonn

%O 1,1

%A _Amarnath Murthy_, Jul 28 2003

%E More terms from _David Wasserman_, Mar 09 2005

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Last modified August 19 04:02 EDT 2019. Contains 326109 sequences. (Running on oeis4.)