1279346

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:409

約数の個数: 16

約数和(自身を含む): 2043360

約数和(自身を除く): 764014

約数列:

[1, 2, 19, 38, 131, 257, 262, 514, 2489, 4883, 4978, 9766, 33667, 67334, 639673, 1279346]

約数ペア:

[(1, 1279346), (2, 639673), (19, 67334), (38, 33667), (131, 9766), (257, 4978), (262, 4883), (514, 2489)]