12865400

素因数分解:

$2^3\times 5^2\times {\mathrm{64327}}^1$

素因数の和:64343

約数の個数: 24

約数和(自身を含む): 29912520

約数和(自身を除く): 17047120

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 64327, 128654, 257308, 321635, 514616, 643270, 1286540, 1608175, 2573080, 3216350, 6432700, 12865400]

約数ペア:

[(1, 12865400), (2, 6432700), (4, 3216350), (5, 2573080), (8, 1608175), (10, 1286540), (20, 643270), (25, 514616), (40, 321635), (50, 257308), (100, 128654), (200, 64327)]