8678740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61991}}^1$

素因数の和:62007

約数の個数: 24

約数和(自身を含む): 20829312

約数和(自身を除く): 12150572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 61991, 123982, 247964, 309955, 433937, 619910, 867874, 1239820, 1735748, 2169685, 4339370, 8678740]

約数ペア:

[(1, 8678740), (2, 4339370), (4, 2169685), (5, 1735748), (7, 1239820), (10, 867874), (14, 619910), (20, 433937), (28, 309955), (35, 247964), (70, 123982), (140, 61991)]