12901780

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{6263}}^1$

素因数の和:6375

約数の個数: 24

約数和(自身を含む): 27361152

約数和(自身を除く): 14459372

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 6263, 12526, 25052, 31315, 62630, 125260, 645089, 1290178, 2580356, 3225445, 6450890, 12901780]

約数ペア:

[(1, 12901780), (2, 6450890), (4, 3225445), (5, 2580356), (10, 1290178), (20, 645089), (103, 125260), (206, 62630), (412, 31315), (515, 25052), (1030, 12526), (2060, 6263)]