1805240

素因数分解:

$2^3\times 5^1\times {\mathrm{45131}}^1$

素因数の和:45142

約数の個数: 16

約数和(自身を含む): 4061880

約数和(自身を除く): 2256640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 45131, 90262, 180524, 225655, 361048, 451310, 902620, 1805240]

約数ペア:

[(1, 1805240), (2, 902620), (4, 451310), (5, 361048), (8, 225655), (10, 180524), (20, 90262), (40, 45131)]