18742780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{133877}}^1$

素因数の和:133893

約数の個数: 24

約数和(自身を含む): 44983008

約数和(自身を除く): 26240228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 133877, 267754, 535508, 669385, 937139, 1338770, 1874278, 2677540, 3748556, 4685695, 9371390, 18742780]

約数ペア:

[(1, 18742780), (2, 9371390), (4, 4685695), (5, 3748556), (7, 2677540), (10, 1874278), (14, 1338770), (20, 937139), (28, 669385), (35, 535508), (70, 267754), (140, 133877)]