18512980

素因数分解:

$2^2\times 5^1\times {\mathrm{925649}}^1$

素因数の和:925658

約数の個数: 12

約数和(自身を含む): 38877300

約数和(自身を除く): 20364320

約数列:

[1, 2, 4, 5, 10, 20, 925649, 1851298, 3702596, 4628245, 9256490, 18512980]

約数ペア:

[(1, 18512980), (2, 9256490), (4, 4628245), (5, 3702596), (10, 1851298), (20, 925649)]