81205400

素因数分解:

$2^3\times 5^2\times {\mathrm{406027}}^1$

素因数の和:406043

約数の個数: 24

約数和(自身を含む): 188803020

約数和(自身を除く): 107597620

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 406027, 812054, 1624108, 2030135, 3248216, 4060270, 8120540, 10150675, 16241080, 20301350, 40602700, 81205400]

約数ペア:

[(1, 81205400), (2, 40602700), (4, 20301350), (5, 16241080), (8, 10150675), (10, 8120540), (20, 4060270), (25, 3248216), (40, 2030135), (50, 1624108), (100, 812054), (200, 406027)]