18071780

素因数分解:

$2^2\times 5^1\times {\mathrm{701}}^1\times {\mathrm{1289}}^1$

素因数の和:1999

約数の個数: 24

約数和(自身を含む): 38034360

約数和(自身を除く): 19962580

約数列:

[1, 2, 4, 5, 10, 20, 701, 1289, 1402, 2578, 2804, 3505, 5156, 6445, 7010, 12890, 14020, 25780, 903589, 1807178, 3614356, 4517945, 9035890, 18071780]

約数ペア:

[(1, 18071780), (2, 9035890), (4, 4517945), (5, 3614356), (10, 1807178), (20, 903589), (701, 25780), (1289, 14020), (1402, 12890), (2578, 7010), (2804, 6445), (3505, 5156)]