20800660

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{28109}}^1$

素因数の和:28155

約数の個数: 24

約数和(自身を含む): 44863560

約数和(自身を除く): 24062900

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 28109, 56218, 112436, 140545, 281090, 562180, 1040033, 2080066, 4160132, 5200165, 10400330, 20800660]

約数ペア:

[(1, 20800660), (2, 10400330), (4, 5200165), (5, 4160132), (10, 2080066), (20, 1040033), (37, 562180), (74, 281090), (148, 140545), (185, 112436), (370, 56218), (740, 28109)]