68180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{487}}^1$

素因数の和:503

約数の個数: 24

約数和(自身を含む): 163968

約数和(自身を除く): 95788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 487, 974, 1948, 2435, 3409, 4870, 6818, 9740, 13636, 17045, 34090, 68180]

約数ペア:

[(1, 68180), (2, 34090), (4, 17045), (5, 13636), (7, 9740), (10, 6818), (14, 4870), (20, 3409), (28, 2435), (35, 1948), (70, 974), (140, 487)]