| 单词 | amicable number |
| 释义 | > as lemmasamicable number amicable number n. either of a pair of numbers, each of which equals the sum of all the factors of the other, excluding the number itself; = amiable number n. at amiable adj. and n. Compounds 2.The smallest pair of amicable numbers is 220 and 284. ΘΚΠ the world > relative properties > number > mathematical number or quantity > [noun] > particular qualities > other digitusa1398 argumentc1405 geodeticala1690 known quantity1702 amicable number1743 summability1900 idempotent1903 modularity1927 repunit1964 palindrome1972 seed1972 1743 E. Stone New Math. Dict. (ed. 2) Amicable Numbers, are such that are mutually equal to the Sum of one another's aliquot Parts, as are these Numbers 284, and 220. 1796 C. Hutton Math. & Philos. Dict. (new ed.) I. 104/2 F. Schooten..I believe first gave the name of amicable to such numbers. 1816 T. Taylor (title) Theoretic Arithmetic..together with some remarkable Particulars respecting Perfect, Amicable, and other Numbers. 2014 M. Parker Things to make & do in Fourth Dimension (2015) vii. 142 Because adding up the factors of each of the numbers gives you the other number, 220 and 284 are considered to be intimately linked, and have earned the name ‘amicable numbers.’ < as lemmas |
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