1900197820

素因数分解:

$2^2\times 5^1\times {\mathrm{95009891}}^1$

素因数の和:95009900

約数の個数: 12

約数和(自身を含む): 3990415464

約数和(自身を除く): 2090217644

約数列:

[1, 2, 4, 5, 10, 20, 95009891, 190019782, 380039564, 475049455, 950098910, 1900197820]

約数ペア:

[(1, 1900197820), (2, 950098910), (4, 475049455), (5, 380039564), (10, 190019782), (20, 95009891)]