Smallest number beginning with 5 and having exactly n prime divisors counted with multiplicity.

Terms

a(0) =5a(1) =51a(2) =50a(3) =54a(4) =500a(5) =504a(6) =5000a(7) =576a(8) =512a(9) =5184a(10) =5120a(11) =50176a(12) =51200a(13) =55296a(14) =507904a(15) =516096a(16) =5038848a(17) =589824a(18) =524288a(19) =5308416a(20) =5242880a(21) =51380224a(22) =52428800a(23) =56623104a(24) =50331648a(25) =509607936a(26) =503316480a(27) =5096079360a(28) =536870912a(29) =5435817984