81329805

素因数分解:

$3^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{5527}}^1$

素因数の和:5650

約数の個数: 32

約数和(自身を含む): 145939200

約数和(自身を除く): 64609395

約数列:

[1, 3, 5, 9, 15, 27, 45, 109, 135, 327, 545, 981, 1635, 2943, 4905, 5527, 14715, 16581, 27635, 49743, 82905, 149229, 248715, 602443, 746145, 1807329, 3012215, 5421987, 9036645, 16265961, 27109935, 81329805]

約数ペア:

[(1, 81329805), (3, 27109935), (5, 16265961), (9, 9036645), (15, 5421987), (27, 3012215), (45, 1807329), (109, 746145), (135, 602443), (327, 248715), (545, 149229), (981, 82905), (1635, 49743), (2943, 27635), (4905, 16581), (5527, 14715)]