195405020

素因数分解:

$2^2\times 5^1\times {\mathrm{9770251}}^1$

素因数の和:9770260

約数の個数: 12

約数和(自身を含む): 410350584

約数和(自身を除く): 214945564

約数列:

[1, 2, 4, 5, 10, 20, 9770251, 19540502, 39081004, 48851255, 97702510, 195405020]

約数ペア:

[(1, 195405020), (2, 97702510), (4, 48851255), (5, 39081004), (10, 19540502), (20, 9770251)]