12915400

素因数分解:

$2^3\times 5^2\times {\mathrm{64577}}^1$

素因数の和:64593

約数の個数: 24

約数和(自身を含む): 30028770

約数和(自身を除く): 17113370

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 64577, 129154, 258308, 322885, 516616, 645770, 1291540, 1614425, 2583080, 3228850, 6457700, 12915400]

約数ペア:

[(1, 12915400), (2, 6457700), (4, 3228850), (5, 2583080), (8, 1614425), (10, 1291540), (20, 645770), (25, 516616), (40, 322885), (50, 258308), (100, 129154), (200, 64577)]