18656020

素因数分解:

$2^2\times 5^1\times {\mathrm{932801}}^1$

素因数の和:932810

約数の個数: 12

約数和(自身を含む): 39177684

約数和(自身を除く): 20521664

約数列:

[1, 2, 4, 5, 10, 20, 932801, 1865602, 3731204, 4664005, 9328010, 18656020]

約数ペア:

[(1, 18656020), (2, 9328010), (4, 4664005), (5, 3731204), (10, 1865602), (20, 932801)]