18085690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{2903}}^1$

素因数の和:3006

約数の個数: 32

約数和(自身を含む): 37635840

約数和(自身を除く): 19550150

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 89, 178, 445, 623, 890, 1246, 2903, 3115, 5806, 6230, 14515, 20321, 29030, 40642, 101605, 203210, 258367, 516734, 1291835, 1808569, 2583670, 3617138, 9042845, 18085690]

約数ペア:

[(1, 18085690), (2, 9042845), (5, 3617138), (7, 2583670), (10, 1808569), (14, 1291835), (35, 516734), (70, 258367), (89, 203210), (178, 101605), (445, 40642), (623, 29030), (890, 20321), (1246, 14515), (2903, 6230), (3115, 5806)]