81705784

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{249103}}^1$

素因数の和:249150

約数の個数: 16

約数和(自身を含む): 156935520

約数和(自身を除く): 75229736

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 249103, 498206, 996412, 1992824, 10213223, 20426446, 40852892, 81705784]

約数ペア:

[(1, 81705784), (2, 40852892), (4, 20426446), (8, 10213223), (41, 1992824), (82, 996412), (164, 498206), (328, 249103)]