164400680

素因数分解:

$2^3\times 5^1\times {\mathrm{4110017}}^1$

素因数の和:4110028

約数の個数: 16

約数和(自身を含む): 369901620

約数和(自身を除く): 205500940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4110017, 8220034, 16440068, 20550085, 32880136, 41100170, 82200340, 164400680]

約数ペア:

[(1, 164400680), (2, 82200340), (4, 41100170), (5, 32880136), (8, 20550085), (10, 16440068), (20, 8220034), (40, 4110017)]