7128740

素因数分解:

$2^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{827}}^1$

素因数の和:1267

約数の個数: 24

約数和(自身を含む): 15023232

約数和(自身を除く): 7894492

約数列:

[1, 2, 4, 5, 10, 20, 431, 827, 862, 1654, 1724, 2155, 3308, 4135, 4310, 8270, 8620, 16540, 356437, 712874, 1425748, 1782185, 3564370, 7128740]

約数ペア:

[(1, 7128740), (2, 3564370), (4, 1782185), (5, 1425748), (10, 712874), (20, 356437), (431, 16540), (827, 8620), (862, 8270), (1654, 4310), (1724, 4135), (2155, 3308)]