86168740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{615491}}^1$

素因数の和:615507

約数の個数: 24

約数和(自身を含む): 206805312

約数和(自身を除く): 120636572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 615491, 1230982, 2461964, 3077455, 4308437, 6154910, 8616874, 12309820, 17233748, 21542185, 43084370, 86168740]

約数ペア:

[(1, 86168740), (2, 43084370), (4, 21542185), (5, 17233748), (7, 12309820), (10, 8616874), (14, 6154910), (20, 4308437), (28, 3077455), (35, 2461964), (70, 1230982), (140, 615491)]