81525745

素因数分解:

$5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{18341}}^1$

素因数の和:18480

約数の個数: 16

約数和(自身を含む): 112693248

約数和(自身を除く): 31167503

約数列:

[1, 5, 7, 35, 127, 635, 889, 4445, 18341, 91705, 128387, 641935, 2329307, 11646535, 16305149, 81525745]

約数ペア:

[(1, 81525745), (5, 16305149), (7, 11646535), (35, 2329307), (127, 641935), (635, 128387), (889, 91705), (4445, 18341)]