808220198020

素因数分解:

$2^2\times 5^1\times {\mathrm{40411009901}}^1$

素因数の和:40411009910

約数の個数: 12

約数和(自身を含む): 1697262415884

約数和(自身を除く): 889042217864

約数列:

[1, 2, 4, 5, 10, 20, 40411009901, 80822019802, 161644039604, 202055049505, 404110099010, 808220198020]

約数ペア:

[(1, 808220198020), (2, 404110099010), (4, 202055049505), (5, 161644039604), (10, 80822019802), (20, 40411009901)]