1978156964

素因数分解:

$2^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{390323}}^1$

素因数の和:390515

約数の個数: 24

約数和(自身を含む): 3978182208

約数和(自身を除く): 2000025244

約数列:

[1, 2, 4, 7, 14, 28, 181, 362, 724, 1267, 2534, 5068, 390323, 780646, 1561292, 2732261, 5464522, 10929044, 70648463, 141296926, 282593852, 494539241, 989078482, 1978156964]

約数ペア:

[(1, 1978156964), (2, 989078482), (4, 494539241), (7, 282593852), (14, 141296926), (28, 70648463), (181, 10929044), (362, 5464522), (724, 2732261), (1267, 1561292), (2534, 780646), (5068, 390323)]