17864920

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{5381}}^1$

素因数の和:5475

約数の個数: 32

約数和(自身を含む): 40687920

約数和(自身を除く): 22823000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 5381, 10762, 21524, 26905, 43048, 53810, 107620, 215240, 446623, 893246, 1786492, 2233115, 3572984, 4466230, 8932460, 17864920]

約数ペア:

[(1, 17864920), (2, 8932460), (4, 4466230), (5, 3572984), (8, 2233115), (10, 1786492), (20, 893246), (40, 446623), (83, 215240), (166, 107620), (332, 53810), (415, 43048), (664, 26905), (830, 21524), (1660, 10762), (3320, 5381)]