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A018339
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Divisors of 220.
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2
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1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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COMMENTS
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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
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LINKS
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MATHEMATICA
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PROG
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CROSSREFS
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KEYWORD
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nonn,fini,full,easy
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AUTHOR
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STATUS
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approved
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