80542420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{575303}}^1$

素因数の和:575319

約数の個数: 24

約数和(自身を含む): 193302144

約数和(自身を除く): 112759724

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 575303, 1150606, 2301212, 2876515, 4027121, 5753030, 8054242, 11506060, 16108484, 20135605, 40271210, 80542420]

約数ペア:

[(1, 80542420), (2, 40271210), (4, 20135605), (5, 16108484), (7, 11506060), (10, 8054242), (14, 5753030), (20, 4027121), (28, 2876515), (35, 2301212), (70, 1150606), (140, 575303)]