81369790

素因数分解:

$2^1\times 5^1\times {\mathrm{1871}}^1\times {\mathrm{4349}}^1$

素因数の和:6227

約数の個数: 16

約数和(自身を含む): 146577600

約数和(自身を除く): 65207810

約数列:

[1, 2, 5, 10, 1871, 3742, 4349, 8698, 9355, 18710, 21745, 43490, 8136979, 16273958, 40684895, 81369790]

約数ペア:

[(1, 81369790), (2, 40684895), (5, 16273958), (10, 8136979), (1871, 43490), (3742, 21745), (4349, 18710), (8698, 9355)]