438320

素因数分解:

$2^4\times 5^1\times {\mathrm{5479}}^1$

素因数の和:5492

約数の個数: 20

約数和(自身を含む): 1019280

約数和(自身を除く): 580960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5479, 10958, 21916, 27395, 43832, 54790, 87664, 109580, 219160, 438320]

約数ペア:

[(1, 438320), (2, 219160), (4, 109580), (5, 87664), (8, 54790), (10, 43832), (16, 27395), (20, 21916), (40, 10958), (80, 5479)]