25805240

素因数分解:

$2^3\times 5^1\times {\mathrm{645131}}^1$

素因数の和:645142

約数の個数: 16

約数和(自身を含む): 58061880

約数和(自身を除く): 32256640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 645131, 1290262, 2580524, 3225655, 5161048, 6451310, 12902620, 25805240]

約数ペア:

[(1, 25805240), (2, 12902620), (4, 6451310), (5, 5161048), (8, 3225655), (10, 2580524), (20, 1290262), (40, 645131)]