218174980

素因数分解:

$2^2\times 5^1\times {\mathrm{2087}}^1\times {\mathrm{5227}}^1$

素因数の和:7323

約数の個数: 24

約数和(自身を含む): 458474688

約数和(自身を除く): 240299708

約数列:

[1, 2, 4, 5, 10, 20, 2087, 4174, 5227, 8348, 10435, 10454, 20870, 20908, 26135, 41740, 52270, 104540, 10908749, 21817498, 43634996, 54543745, 109087490, 218174980]

約数ペア:

[(1, 218174980), (2, 109087490), (4, 54543745), (5, 43634996), (10, 21817498), (20, 10908749), (2087, 104540), (4174, 52270), (5227, 41740), (8348, 26135), (10435, 20908), (10454, 20870)]