86981740

素因数分解:

$2^2\times 5^1\times {\mathrm{1087}}^1\times {\mathrm{4001}}^1$

素因数の和:5097

約数の個数: 24

約数和(自身を含む): 182875392

約数和(自身を除く): 95893652

約数列:

[1, 2, 4, 5, 10, 20, 1087, 2174, 4001, 4348, 5435, 8002, 10870, 16004, 20005, 21740, 40010, 80020, 4349087, 8698174, 17396348, 21745435, 43490870, 86981740]

約数ペア:

[(1, 86981740), (2, 43490870), (4, 21745435), (5, 17396348), (10, 8698174), (20, 4349087), (1087, 80020), (2174, 40010), (4001, 21740), (4348, 20005), (5435, 16004), (8002, 10870)]