8170420

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2939}}^1$

素因数の和:3087

約数の個数: 24

約数和(自身を含む): 17287200

約数和(自身を除く): 9116780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 2939, 5878, 11756, 14695, 29390, 58780, 408521, 817042, 1634084, 2042605, 4085210, 8170420]

約数ペア:

[(1, 8170420), (2, 4085210), (4, 2042605), (5, 1634084), (10, 817042), (20, 408521), (139, 58780), (278, 29390), (556, 14695), (695, 11756), (1390, 5878), (2780, 2939)]