18825740

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{2371}}^1$

素因数の和:2777

約数の個数: 24

約数和(自身を含む): 39650352

約数和(自身を除く): 20824612

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1588, 1985, 2371, 3970, 4742, 7940, 9484, 11855, 23710, 47420, 941287, 1882574, 3765148, 4706435, 9412870, 18825740]

約数ペア:

[(1, 18825740), (2, 9412870), (4, 4706435), (5, 3765148), (10, 1882574), (20, 941287), (397, 47420), (794, 23710), (1588, 11855), (1985, 9484), (2371, 7940), (3970, 4742)]