81368456

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{782389}}^1$

素因数の和:782408

約数の個数: 16

約数和(自身を含む): 164301900

約数和(自身を除く): 82933444

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 782389, 1564778, 3129556, 6259112, 10171057, 20342114, 40684228, 81368456]

約数ペア:

[(1, 81368456), (2, 40684228), (4, 20342114), (8, 10171057), (13, 6259112), (26, 3129556), (52, 1564778), (104, 782389)]