A018339 Divisors of 220.

1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn
• fini
• full
• easy

Comments

This number has twelve divisors that add up to 504, and 504 - 220 = 284, so 220 is an abundant number. In turn, 284 is a deficient number with six divisors (see A018373) which also add up to 504, and 504 - 284 = 220. - Alonso del Arte, Oct 22 2017

Links

• Index entries for sequences related to divisors of numbers

Crossrefs

Cf. A063990, A259180.

Programs

Mathematica

Divisors[220] (* Alonso del Arte, Oct 22 2017 *)

PARI

divisors(220) \\ Charles R Greathouse IV, Jun 22 2017