123020660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{878719}}^1$

素因数の和:878735

約数の個数: 24

約数和(自身を含む): 295249920

約数和(自身を除く): 172229260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 878719, 1757438, 3514876, 4393595, 6151033, 8787190, 12302066, 17574380, 24604132, 30755165, 61510330, 123020660]

約数ペア:

[(1, 123020660), (2, 61510330), (4, 30755165), (5, 24604132), (7, 17574380), (10, 12302066), (14, 8787190), (20, 6151033), (28, 4393595), (35, 3514876), (70, 1757438), (140, 878719)]