18342860

素因数分解:

$2^2\times 5^1\times {\mathrm{827}}^1\times {\mathrm{1109}}^1$

素因数の和:1945

約数の個数: 24

約数和(自身を含む): 38601360

約数和(自身を除く): 20258500

約数列:

[1, 2, 4, 5, 10, 20, 827, 1109, 1654, 2218, 3308, 4135, 4436, 5545, 8270, 11090, 16540, 22180, 917143, 1834286, 3668572, 4585715, 9171430, 18342860]

約数ペア:

[(1, 18342860), (2, 9171430), (4, 4585715), (5, 3668572), (10, 1834286), (20, 917143), (827, 22180), (1109, 16540), (1654, 11090), (2218, 8270), (3308, 5545), (4135, 4436)]