65408260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{172127}}^1$

素因数の和:172155

約数の個数: 24

約数和(自身を含む): 144587520

約数和(自身を除く): 79179260

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 172127, 344254, 688508, 860635, 1721270, 3270413, 3442540, 6540826, 13081652, 16352065, 32704130, 65408260]

約数ペア:

[(1, 65408260), (2, 32704130), (4, 16352065), (5, 13081652), (10, 6540826), (19, 3442540), (20, 3270413), (38, 1721270), (76, 860635), (95, 688508), (190, 344254), (380, 172127)]