12863800

素因数分解:

$2^3\times 5^2\times {\mathrm{64319}}^1$

素因数の和:64335

約数の個数: 24

約数和(自身を含む): 29908800

約数和(自身を除く): 17045000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 64319, 128638, 257276, 321595, 514552, 643190, 1286380, 1607975, 2572760, 3215950, 6431900, 12863800]

約数ペア:

[(1, 12863800), (2, 6431900), (4, 3215950), (5, 2572760), (8, 1607975), (10, 1286380), (20, 643190), (25, 514552), (40, 321595), (50, 257276), (100, 128638), (200, 64319)]