80255020

素因数分解:

$2^2\times 5^1\times {\mathrm{1531}}^1\times {\mathrm{2621}}^1$

素因数の和:4161

約数の個数: 24

約数和(自身を含む): 168709968

約数和(自身を除く): 88454948

約数列:

[1, 2, 4, 5, 10, 20, 1531, 2621, 3062, 5242, 6124, 7655, 10484, 13105, 15310, 26210, 30620, 52420, 4012751, 8025502, 16051004, 20063755, 40127510, 80255020]

約数ペア:

[(1, 80255020), (2, 40127510), (4, 20063755), (5, 16051004), (10, 8025502), (20, 4012751), (1531, 52420), (2621, 30620), (3062, 26210), (5242, 15310), (6124, 13105), (7655, 10484)]