20168270

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18503}}^1$

素因数の和:18619

約数の個数: 16

約数和(自身を含む): 36637920

約数和(自身を除く): 16469650

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 18503, 37006, 92515, 185030, 2016827, 4033654, 10084135, 20168270]

約数ペア:

[(1, 20168270), (2, 10084135), (5, 4033654), (10, 2016827), (109, 185030), (218, 92515), (545, 37006), (1090, 18503)]