2497660420

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{898439}}^1$

素因数の和:898587

約数の個数: 24

約数和(自身を含む): 5282827200

約数和(自身を除く): 2785166780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 898439, 1796878, 3593756, 4492195, 8984390, 17968780, 124883021, 249766042, 499532084, 624415105, 1248830210, 2497660420]

約数ペア:

[(1, 2497660420), (2, 1248830210), (4, 624415105), (5, 499532084), (10, 249766042), (20, 124883021), (139, 17968780), (278, 8984390), (556, 4492195), (695, 3593756), (1390, 1796878), (2780, 898439)]