7891280

素因数分解:

$2^4\times 5^1\times {\mathrm{98641}}^1$

素因数の和:98654

約数の個数: 20

約数和(自身を含む): 18347412

約数和(自身を除く): 10456132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 98641, 197282, 394564, 493205, 789128, 986410, 1578256, 1972820, 3945640, 7891280]

約数ペア:

[(1, 7891280), (2, 3945640), (4, 1972820), (5, 1578256), (8, 986410), (10, 789128), (16, 493205), (20, 394564), (40, 197282), (80, 98641)]