19538020

素因数分解:

$2^2\times 5^1\times {\mathrm{823}}^1\times {\mathrm{1187}}^1$

素因数の和:2019

約数の個数: 24

約数和(自身を含む): 41114304

約数和(自身を除く): 21576284

約数列:

[1, 2, 4, 5, 10, 20, 823, 1187, 1646, 2374, 3292, 4115, 4748, 5935, 8230, 11870, 16460, 23740, 976901, 1953802, 3907604, 4884505, 9769010, 19538020]

約数ペア:

[(1, 19538020), (2, 9769010), (4, 4884505), (5, 3907604), (10, 1953802), (20, 976901), (823, 23740), (1187, 16460), (1646, 11870), (2374, 8230), (3292, 5935), (4115, 4748)]