81978808

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{445537}}^1$

素因数の和:445566

約数の個数: 16

約数和(自身を含む): 160393680

約数和(自身を除く): 78414872

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 445537, 891074, 1782148, 3564296, 10247351, 20494702, 40989404, 81978808]

約数ペア:

[(1, 81978808), (2, 40989404), (4, 20494702), (8, 10247351), (23, 3564296), (46, 1782148), (92, 891074), (184, 445537)]