81409725

素因数分解:

$3^3\times 5^2\times {\mathrm{120607}}^1$

素因数の和:120626

約数の個数: 24

約数和(自身を含む): 149553920

約数和(自身を除く): 68144195

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 120607, 361821, 603035, 1085463, 1809105, 3015175, 3256389, 5427315, 9045525, 16281945, 27136575, 81409725]

約数ペア:

[(1, 81409725), (3, 27136575), (5, 16281945), (9, 9045525), (15, 5427315), (25, 3256389), (27, 3015175), (45, 1809105), (75, 1085463), (135, 603035), (225, 361821), (675, 120607)]