28320740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{202291}}^1$

素因数の和:202307

約数の個数: 24

約数和(自身を含む): 67970112

約数和(自身を除く): 39649372

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 202291, 404582, 809164, 1011455, 1416037, 2022910, 2832074, 4045820, 5664148, 7080185, 14160370, 28320740]

約数ペア:

[(1, 28320740), (2, 14160370), (4, 7080185), (5, 5664148), (7, 4045820), (10, 2832074), (14, 2022910), (20, 1416037), (28, 1011455), (35, 809164), (70, 404582), (140, 202291)]