81267935

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1\times {\mathrm{389}}^1$

素因数の和:575

約数の個数: 32

約数和(自身を含む): 115015680

約数和(自身を除く): 33747745

約数列:

[1, 5, 7, 35, 47, 127, 235, 329, 389, 635, 889, 1645, 1945, 2723, 4445, 5969, 13615, 18283, 29845, 41783, 49403, 91415, 127981, 208915, 247015, 345821, 639905, 1729105, 2321941, 11609705, 16253587, 81267935]

約数ペア:

[(1, 81267935), (5, 16253587), (7, 11609705), (35, 2321941), (47, 1729105), (127, 639905), (235, 345821), (329, 247015), (389, 208915), (635, 127981), (889, 91415), (1645, 49403), (1945, 41783), (2723, 29845), (4445, 18283), (5969, 13615)]