122780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{877}}^1$

素因数の和:893

約数の個数: 24

約数和(自身を含む): 295008

約数和(自身を除く): 172228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 877, 1754, 3508, 4385, 6139, 8770, 12278, 17540, 24556, 30695, 61390, 122780]

約数ペア:

[(1, 122780), (2, 61390), (4, 30695), (5, 24556), (7, 17540), (10, 12278), (14, 8770), (20, 6139), (28, 4385), (35, 3508), (70, 1754), (140, 877)]