199999592020

素因数分解:

$2^2\times 5^1\times {\mathrm{9999979601}}^1$

素因数の和:9999979610

約数の個数: 12

約数和(自身を含む): 419999143284

約数和(自身を除く): 219999551264

約数列:

[1, 2, 4, 5, 10, 20, 9999979601, 19999959202, 39999918404, 49999898005, 99999796010, 199999592020]

約数ペア:

[(1, 199999592020), (2, 99999796010), (4, 49999898005), (5, 39999918404), (10, 19999959202), (20, 9999979601)]