81609268

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{4657}}^1$

素因数の和:5011

約数の個数: 24

約数和(自身を含む): 154291592

約数和(自身を除く): 72682324

約数列:

[1, 2, 4, 13, 26, 52, 337, 674, 1348, 4381, 4657, 8762, 9314, 17524, 18628, 60541, 121082, 242164, 1569409, 3138818, 6277636, 20402317, 40804634, 81609268]

約数ペア:

[(1, 81609268), (2, 40804634), (4, 20402317), (13, 6277636), (26, 3138818), (52, 1569409), (337, 242164), (674, 121082), (1348, 60541), (4381, 18628), (4657, 17524), (8762, 9314)]