81148040

素因数分解:

$2^3\times 5^1\times {\mathrm{2028701}}^1$

素因数の和:2028712

約数の個数: 16

約数和(自身を含む): 182583180

約数和(自身を除く): 101435140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2028701, 4057402, 8114804, 10143505, 16229608, 20287010, 40574020, 81148040]

約数ペア:

[(1, 81148040), (2, 40574020), (4, 20287010), (5, 16229608), (8, 10143505), (10, 8114804), (20, 4057402), (40, 2028701)]