78062020

素因数分解:

$2^2\times 5^1\times {\mathrm{3903101}}^1$

素因数の和:3903110

約数の個数: 12

約数和(自身を含む): 163930284

約数和(自身を除く): 85868264

約数列:

[1, 2, 4, 5, 10, 20, 3903101, 7806202, 15612404, 19515505, 39031010, 78062020]

約数ペア:

[(1, 78062020), (2, 39031010), (4, 19515505), (5, 15612404), (10, 7806202), (20, 3903101)]