18323860

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{2087}}^1$

素因数の和:2535

約数の個数: 24

約数和(自身を含む): 38586240

約数和(自身を除く): 20262380

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2087, 2195, 4174, 4390, 8348, 8780, 10435, 20870, 41740, 916193, 1832386, 3664772, 4580965, 9161930, 18323860]

約数ペア:

[(1, 18323860), (2, 9161930), (4, 4580965), (5, 3664772), (10, 1832386), (20, 916193), (439, 41740), (878, 20870), (1756, 10435), (2087, 8780), (2195, 8348), (4174, 4390)]