209370825

素因数分解:

$3^4\times 5^2\times {\mathrm{103393}}^1$

素因数の和:103415

約数の個数: 30

約数和(自身を含む): 387830894

約数和(自身を除く): 178460069

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 103393, 310179, 516965, 930537, 1550895, 2584825, 2791611, 4652685, 7754475, 8374833, 13958055, 23263425, 41874165, 69790275, 209370825]

約数ペア:

[(1, 209370825), (3, 69790275), (5, 41874165), (9, 23263425), (15, 13958055), (25, 8374833), (27, 7754475), (45, 4652685), (75, 2791611), (81, 2584825), (135, 1550895), (225, 930537), (405, 516965), (675, 310179), (2025, 103393)]