12726980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{90907}}^1$

素因数の和:90923

約数の個数: 24

約数和(自身を含む): 30545088

約数和(自身を除く): 17818108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 90907, 181814, 363628, 454535, 636349, 909070, 1272698, 1818140, 2545396, 3181745, 6363490, 12726980]

約数ペア:

[(1, 12726980), (2, 6363490), (4, 3181745), (5, 2545396), (7, 1818140), (10, 1272698), (14, 909070), (20, 636349), (28, 454535), (35, 363628), (70, 181814), (140, 90907)]