81053800

素因数分解:

$2^3\times 5^2\times {\mathrm{405269}}^1$

素因数の和:405285

約数の個数: 24

約数和(自身を含む): 188450550

約数和(自身を除く): 107396750

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 405269, 810538, 1621076, 2026345, 3242152, 4052690, 8105380, 10131725, 16210760, 20263450, 40526900, 81053800]

約数ペア:

[(1, 81053800), (2, 40526900), (4, 20263450), (5, 16210760), (8, 10131725), (10, 8105380), (20, 4052690), (25, 3242152), (40, 2026345), (50, 1621076), (100, 810538), (200, 405269)]