81352336

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{391117}}^1$

素因数の和:391138

約数の個数: 20

約数和(自身を含む): 169745212

約数和(自身を除く): 88392876

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 391117, 782234, 1564468, 3128936, 5084521, 6257872, 10169042, 20338084, 40676168, 81352336]

約数ペア:

[(1, 81352336), (2, 40676168), (4, 20338084), (8, 10169042), (13, 6257872), (16, 5084521), (26, 3128936), (52, 1564468), (104, 782234), (208, 391117)]