13209800

素因数分解:

$2^3\times 5^2\times {\mathrm{257}}^2$

素因数の和:530

約数の個数: 36

約数和(自身を含む): 30832755

約数和(自身を除く): 17622955

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 257, 514, 1028, 1285, 2056, 2570, 5140, 6425, 10280, 12850, 25700, 51400, 66049, 132098, 264196, 330245, 528392, 660490, 1320980, 1651225, 2641960, 3302450, 6604900, 13209800]

約数ペア:

[(1, 13209800), (2, 6604900), (4, 3302450), (5, 2641960), (8, 1651225), (10, 1320980), (20, 660490), (25, 528392), (40, 330245), (50, 264196), (100, 132098), (200, 66049), (257, 51400), (514, 25700), (1028, 12850), (1285, 10280), (2056, 6425), (2570, 5140)]