81751275

素因数分解:

$3^5\times 5^2\times {\mathrm{13457}}^1$

素因数の和:13482

約数の個数: 36

約数和(自身を含む): 151860072

約数和(自身を除く): 70108797

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 243, 405, 675, 1215, 2025, 6075, 13457, 40371, 67285, 121113, 201855, 336425, 363339, 605565, 1009275, 1090017, 1816695, 3027825, 3270051, 5450085, 9083475, 16350255, 27250425, 81751275]

約数ペア:

[(1, 81751275), (3, 27250425), (5, 16350255), (9, 9083475), (15, 5450085), (25, 3270051), (27, 3027825), (45, 1816695), (75, 1090017), (81, 1009275), (135, 605565), (225, 363339), (243, 336425), (405, 201855), (675, 121113), (1215, 67285), (2025, 40371), (6075, 13457)]