285400

素因数分解:

$2^3\times 5^2\times {\mathrm{1427}}^1$

素因数の和:1443

約数の個数: 24

約数和(自身を含む): 664020

約数和(自身を除く): 378620

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 1427, 2854, 5708, 7135, 11416, 14270, 28540, 35675, 57080, 71350, 142700, 285400]

約数ペア:

[(1, 285400), (2, 142700), (4, 71350), (5, 57080), (8, 35675), (10, 28540), (20, 14270), (25, 11416), (40, 7135), (50, 5708), (100, 2854), (200, 1427)]