19964180

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{34421}}^1$

素因数の和:34459

約数の個数: 24

約数和(自身を含む): 43371720

約数和(自身を除く): 23407540

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 34421, 68842, 137684, 172105, 344210, 688420, 998209, 1996418, 3992836, 4991045, 9982090, 19964180]

約数ペア:

[(1, 19964180), (2, 9982090), (4, 4991045), (5, 3992836), (10, 1996418), (20, 998209), (29, 688420), (58, 344210), (116, 172105), (145, 137684), (290, 68842), (580, 34421)]