81802420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{584303}}^1$

素因数の和:584319

約数の個数: 24

約数和(自身を含む): 196326144

約数和(自身を除く): 114523724

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 584303, 1168606, 2337212, 2921515, 4090121, 5843030, 8180242, 11686060, 16360484, 20450605, 40901210, 81802420]

約数ペア:

[(1, 81802420), (2, 40901210), (4, 20450605), (5, 16360484), (7, 11686060), (10, 8180242), (14, 5843030), (20, 4090121), (28, 2921515), (35, 2337212), (70, 1168606), (140, 584303)]