768140

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{199}}^1$

素因数の和:401

約数の個数: 24

約数和(自身を含む): 1629600

約数和(自身を除く): 861460

約数列:

[1, 2, 4, 5, 10, 20, 193, 199, 386, 398, 772, 796, 965, 995, 1930, 1990, 3860, 3980, 38407, 76814, 153628, 192035, 384070, 768140]

約数ペア:

[(1, 768140), (2, 384070), (4, 192035), (5, 153628), (10, 76814), (20, 38407), (193, 3980), (199, 3860), (386, 1990), (398, 1930), (772, 995), (796, 965)]