256723788

素因数分解:

$2^2\times 3^1\times {\mathrm{71}}^1\times {\mathrm{301319}}^1$

素因数の和:301397

約数の個数: 24

約数和(自身を含む): 607461120

約数和(自身を除く): 350737332

約数列:

[1, 2, 3, 4, 6, 12, 71, 142, 213, 284, 426, 852, 301319, 602638, 903957, 1205276, 1807914, 3615828, 21393649, 42787298, 64180947, 85574596, 128361894, 256723788]

約数ペア:

[(1, 256723788), (2, 128361894), (3, 85574596), (4, 64180947), (6, 42787298), (12, 21393649), (71, 3615828), (142, 1807914), (213, 1205276), (284, 903957), (426, 602638), (852, 301319)]