28141580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{34319}}^1$

素因数の和:34369

約数の個数: 24

約数和(自身を含む): 60540480

約数和(自身を除く): 32398900

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 34319, 68638, 137276, 171595, 343190, 686380, 1407079, 2814158, 5628316, 7035395, 14070790, 28141580]

約数ペア:

[(1, 28141580), (2, 14070790), (4, 7035395), (5, 5628316), (10, 2814158), (20, 1407079), (41, 686380), (82, 343190), (164, 171595), (205, 137276), (410, 68638), (820, 34319)]