19560620

素因数分解:

$2^2\times 5^1\times {\mathrm{978031}}^1$

素因数の和:978040

約数の個数: 12

約数和(自身を含む): 41077344

約数和(自身を除く): 21516724

約数列:

[1, 2, 4, 5, 10, 20, 978031, 1956062, 3912124, 4890155, 9780310, 19560620]

約数ペア:

[(1, 19560620), (2, 9780310), (4, 4890155), (5, 3912124), (10, 1956062), (20, 978031)]