128552020

素因数分解:

$2^2\times 5^1\times {\mathrm{337}}^1\times {\mathrm{19073}}^1$

素因数の和:19419

約数の個数: 24

約数和(自身を含む): 270774504

約数和(自身を除く): 142222484

約数列:

[1, 2, 4, 5, 10, 20, 337, 674, 1348, 1685, 3370, 6740, 19073, 38146, 76292, 95365, 190730, 381460, 6427601, 12855202, 25710404, 32138005, 64276010, 128552020]

約数ペア:

[(1, 128552020), (2, 64276010), (4, 32138005), (5, 25710404), (10, 12855202), (20, 6427601), (337, 381460), (674, 190730), (1348, 95365), (1685, 76292), (3370, 38146), (6740, 19073)]