28225220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{34421}}^1$

素因数の和:34471

約数の個数: 24

約数和(自身を含む): 60720408

約数和(自身を除く): 32495188

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 34421, 68842, 137684, 172105, 344210, 688420, 1411261, 2822522, 5645044, 7056305, 14112610, 28225220]

約数ペア:

[(1, 28225220), (2, 14112610), (4, 7056305), (5, 5645044), (10, 2822522), (20, 1411261), (41, 688420), (82, 344210), (164, 172105), (205, 137684), (410, 68842), (820, 34421)]