13120280

素因数分解:

$2^3\times 5^1\times {\mathrm{328007}}^1$

素因数の和:328018

約数の個数: 16

約数和(自身を含む): 29520720

約数和(自身を除く): 16400440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 328007, 656014, 1312028, 1640035, 2624056, 3280070, 6560140, 13120280]

約数ペア:

[(1, 13120280), (2, 6560140), (4, 3280070), (5, 2624056), (8, 1640035), (10, 1312028), (20, 656014), (40, 328007)]