12290455

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{389}}^1$

素因数の和:554

約数の個数: 16

約数和(自身を含む): 15163200

約数和(自身を除く): 2872745

約数列:

[1, 5, 71, 89, 355, 389, 445, 1945, 6319, 27619, 31595, 34621, 138095, 173105, 2458091, 12290455]

約数ペア:

[(1, 12290455), (5, 2458091), (71, 173105), (89, 138095), (355, 34621), (389, 31595), (445, 27619), (1945, 6319)]