28208740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{201491}}^1$

素因数の和:201507

約数の個数: 24

約数和(自身を含む): 67701312

約数和(自身を除く): 39492572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 201491, 402982, 805964, 1007455, 1410437, 2014910, 2820874, 4029820, 5641748, 7052185, 14104370, 28208740]

約数ペア:

[(1, 28208740), (2, 14104370), (4, 7052185), (5, 5641748), (7, 4029820), (10, 2820874), (14, 2014910), (20, 1410437), (28, 1007455), (35, 805964), (70, 402982), (140, 201491)]