198762020

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{25033}}^1$

素因数の和:25439

約数の個数: 24

約数和(自身を含む): 418468344

約数和(自身を除く): 219706324

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1588, 1985, 3970, 7940, 25033, 50066, 100132, 125165, 250330, 500660, 9938101, 19876202, 39752404, 49690505, 99381010, 198762020]

約数ペア:

[(1, 198762020), (2, 99381010), (4, 49690505), (5, 39752404), (10, 19876202), (20, 9938101), (397, 500660), (794, 250330), (1588, 125165), (1985, 100132), (3970, 50066), (7940, 25033)]