18288740

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{2083}}^1$

素因数の和:2531

約数の個数: 24

約数和(自身を含む): 38512320

約数和(自身を除く): 20223580

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2083, 2195, 4166, 4390, 8332, 8780, 10415, 20830, 41660, 914437, 1828874, 3657748, 4572185, 9144370, 18288740]

約数ペア:

[(1, 18288740), (2, 9144370), (4, 4572185), (5, 3657748), (10, 1828874), (20, 914437), (439, 41660), (878, 20830), (1756, 10415), (2083, 8780), (2195, 8332), (4166, 4390)]