397333780

素因数分解:

$2^2\times 5^1\times {\mathrm{719}}^1\times {\mathrm{27631}}^1$

素因数の和:28359

約数の個数: 24

約数和(自身を含む): 835591680

約数和(自身を除く): 438257900

約数列:

[1, 2, 4, 5, 10, 20, 719, 1438, 2876, 3595, 7190, 14380, 27631, 55262, 110524, 138155, 276310, 552620, 19866689, 39733378, 79466756, 99333445, 198666890, 397333780]

約数ペア:

[(1, 397333780), (2, 198666890), (4, 99333445), (5, 79466756), (10, 39733378), (20, 19866689), (719, 552620), (1438, 276310), (2876, 138155), (3595, 110524), (7190, 55262), (14380, 27631)]