25980453220

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{2007763}}^1$

素因数の和:2008419

約数の個数: 24

約数和(自身を含む): 54643305024

約数和(自身を除く): 28662851804

約数列:

[1, 2, 4, 5, 10, 20, 647, 1294, 2588, 3235, 6470, 12940, 2007763, 4015526, 8031052, 10038815, 20077630, 40155260, 1299022661, 2598045322, 5196090644, 6495113305, 12990226610, 25980453220]

約数ペア:

[(1, 25980453220), (2, 12990226610), (4, 6495113305), (5, 5196090644), (10, 2598045322), (20, 1299022661), (647, 40155260), (1294, 20077630), (2588, 10038815), (3235, 8031052), (6470, 4015526), (12940, 2007763)]