A104465 - OEIS

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A104465

a(n) is the least k with n prime factors (counting multiplicity) such that the sum of these n factors divides k. First member of A036844 with n prime factors.

2

2, 4, 27, 16, 72, 240, 288, 256, 2688, 3840, 4608, 13824, 30720, 61440, 73728, 65536, 294912, 983040, 4325376, 5898240, 11010048, 15728640, 18874368, 141557760, 169869312, 654311424, 1107296256, 1006632960, 2818572288, 4026531840

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OFFSET

1,1

COMMENTS

A001222(a(n)) = n; A001414(a(n)) divides a(n).

LINKS

Table of n, a(n) for n=1..30.

EXAMPLE

a(5) = 72 = 2*2*2*3*3; 2+2+2+3+3 = 12 divides 72.

CROSSREFS

Cf. A001414, A001222, A036844, A086487.

Sequence in context: A358563 A189896 A095182 * A175759 A098515 A256451

Adjacent sequences: A104462 A104463 A104464 * A104466 A104467 A104468

KEYWORD

nonn,less

AUTHOR

David Wasserman, Mar 09 2005

STATUS

approved