81902090

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{449}}^1$

素因数の和:539

約数の個数: 64

約数和(自身を含む): 166212000

約数和(自身を除く): 84309910

約数列:

[1, 2, 5, 10, 17, 29, 34, 37, 58, 74, 85, 145, 170, 185, 290, 370, 449, 493, 629, 898, 986, 1073, 1258, 2146, 2245, 2465, 3145, 4490, 4930, 5365, 6290, 7633, 10730, 13021, 15266, 16613, 18241, 26042, 33226, 36482, 38165, 65105, 76330, 83065, 91205, 130210, 166130, 182410, 221357, 282421, 442714, 481777, 564842, 963554, 1106785, 1412105, 2213570, 2408885, 2824210, 4817770, 8190209, 16380418, 40951045, 81902090]

約数ペア:

[(1, 81902090), (2, 40951045), (5, 16380418), (10, 8190209), (17, 4817770), (29, 2824210), (34, 2408885), (37, 2213570), (58, 1412105), (74, 1106785), (85, 963554), (145, 564842), (170, 481777), (185, 442714), (290, 282421), (370, 221357), (449, 182410), (493, 166130), (629, 130210), (898, 91205), (986, 83065), (1073, 76330), (1258, 65105), (2146, 38165), (2245, 36482), (2465, 33226), (3145, 26042), (4490, 18241), (4930, 16613), (5365, 15266), (6290, 13021), (7633, 10730)]