781172

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1213}}^1$

素因数の和:1247

約数の個数: 24

約数和(自身を含む): 1631616

約数和(自身を除く): 850444

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 1213, 2426, 4852, 8491, 16982, 27899, 33964, 55798, 111596, 195293, 390586, 781172]

約数ペア:

[(1, 781172), (2, 390586), (4, 195293), (7, 111596), (14, 55798), (23, 33964), (28, 27899), (46, 16982), (92, 8491), (161, 4852), (322, 2426), (644, 1213)]