981340

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{353}}^1$

素因数の和:501

約数の個数: 24

約数和(自身を含む): 2081520

約数和(自身を除く): 1100180

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 353, 556, 695, 706, 1390, 1412, 1765, 2780, 3530, 7060, 49067, 98134, 196268, 245335, 490670, 981340]

約数ペア:

[(1, 981340), (2, 490670), (4, 245335), (5, 196268), (10, 98134), (20, 49067), (139, 7060), (278, 3530), (353, 2780), (556, 1765), (695, 1412), (706, 1390)]