256452

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:128

約数の個数: 48

約数和(自身を含む): 709632

約数和(自身を除く): 453180

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 43, 71, 84, 86, 129, 142, 172, 213, 258, 284, 301, 426, 497, 516, 602, 852, 903, 994, 1204, 1491, 1806, 1988, 2982, 3053, 3612, 5964, 6106, 9159, 12212, 18318, 21371, 36636, 42742, 64113, 85484, 128226, 256452]

約数ペア:

[(1, 256452), (2, 128226), (3, 85484), (4, 64113), (6, 42742), (7, 36636), (12, 21371), (14, 18318), (21, 12212), (28, 9159), (42, 6106), (43, 5964), (71, 3612), (84, 3053), (86, 2982), (129, 1988), (142, 1806), (172, 1491), (213, 1204), (258, 994), (284, 903), (301, 852), (426, 602), (497, 516)]