254163020

素因数分解:

$2^2\times 5^1\times {\mathrm{2531}}^1\times {\mathrm{5021}}^1$

素因数の和:7561

約数の個数: 24

約数和(自身を含む): 534059568

約数和(自身を除く): 279896548

約数列:

[1, 2, 4, 5, 10, 20, 2531, 5021, 5062, 10042, 10124, 12655, 20084, 25105, 25310, 50210, 50620, 100420, 12708151, 25416302, 50832604, 63540755, 127081510, 254163020]

約数ペア:

[(1, 254163020), (2, 127081510), (4, 63540755), (5, 50832604), (10, 25416302), (20, 12708151), (2531, 100420), (5021, 50620), (5062, 50210), (10042, 25310), (10124, 25105), (12655, 20084)]