201617720

素因数分解:

$2^3\times 5^1\times {\mathrm{5040443}}^1$

素因数の和:5040454

約数の個数: 16

約数和(自身を含む): 453639960

約数和(自身を除く): 252022240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5040443, 10080886, 20161772, 25202215, 40323544, 50404430, 100808860, 201617720]

約数ペア:

[(1, 201617720), (2, 100808860), (4, 50404430), (5, 40323544), (8, 25202215), (10, 20161772), (20, 10080886), (40, 5040443)]