68738740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{490991}}^1$

素因数の和:491007

約数の個数: 24

約数和(自身を含む): 164973312

約数和(自身を除く): 96234572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 490991, 981982, 1963964, 2454955, 3436937, 4909910, 6873874, 9819820, 13747748, 17184685, 34369370, 68738740]

約数ペア:

[(1, 68738740), (2, 34369370), (4, 17184685), (5, 13747748), (7, 9819820), (10, 6873874), (14, 4909910), (20, 3436937), (28, 2454955), (35, 1963964), (70, 981982), (140, 490991)]