12855800

素因数分解:

$2^3\times 5^2\times {\mathrm{64279}}^1$

素因数の和:64295

約数の個数: 24

約数和(自身を含む): 29890200

約数和(自身を除く): 17034400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 64279, 128558, 257116, 321395, 514232, 642790, 1285580, 1606975, 2571160, 3213950, 6427900, 12855800]

約数ペア:

[(1, 12855800), (2, 6427900), (4, 3213950), (5, 2571160), (8, 1606975), (10, 1285580), (20, 642790), (25, 514232), (40, 321395), (50, 257116), (100, 128558), (200, 64279)]