81297995

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{4289}}^1$

素因数の和:4534

約数の個数: 16

約数和(自身を含む): 103783680

約数和(自身を除く): 22485685

約数列:

[1, 5, 17, 85, 223, 1115, 3791, 4289, 18955, 21445, 72913, 364565, 956447, 4782235, 16259599, 81297995]

約数ペア:

[(1, 81297995), (5, 16259599), (17, 4782235), (85, 956447), (223, 364565), (1115, 72913), (3791, 21445), (4289, 18955)]