978740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{6991}}^1$

素因数の和:7007

約数の個数: 24

約数和(自身を含む): 2349312

約数和(自身を除く): 1370572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 6991, 13982, 27964, 34955, 48937, 69910, 97874, 139820, 195748, 244685, 489370, 978740]

約数ペア:

[(1, 978740), (2, 489370), (4, 244685), (5, 195748), (7, 139820), (10, 97874), (14, 69910), (20, 48937), (28, 34955), (35, 27964), (70, 13982), (140, 6991)]