80821690

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{218437}}^1$

素因数の和:218481

約数の個数: 16

約数和(自身を含む): 149411592

約数和(自身を除く): 68589902

約数列:

[1, 2, 5, 10, 37, 74, 185, 370, 218437, 436874, 1092185, 2184370, 8082169, 16164338, 40410845, 80821690]

約数ペア:

[(1, 80821690), (2, 40410845), (5, 16164338), (10, 8082169), (37, 2184370), (74, 1092185), (185, 436874), (370, 218437)]