18827420

素因数分解:

$2^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{1933}}^1$

素因数の和:2429

約数の個数: 24

約数和(自身を含む): 39639264

約数和(自身を除く): 20811844

約数列:

[1, 2, 4, 5, 10, 20, 487, 974, 1933, 1948, 2435, 3866, 4870, 7732, 9665, 9740, 19330, 38660, 941371, 1882742, 3765484, 4706855, 9413710, 18827420]

約数ペア:

[(1, 18827420), (2, 9413710), (4, 4706855), (5, 3765484), (10, 1882742), (20, 941371), (487, 38660), (974, 19330), (1933, 9740), (1948, 9665), (2435, 7732), (3866, 4870)]