1285280140

素因数分解:

$2^2\times 5^1\times {\mathrm{1867}}^1\times {\mathrm{34421}}^1$

素因数の和:36297

約数の個数: 24

約数和(自身を含む): 2700612432

約数和(自身を除く): 1415332292

約数列:

[1, 2, 4, 5, 10, 20, 1867, 3734, 7468, 9335, 18670, 34421, 37340, 68842, 137684, 172105, 344210, 688420, 64264007, 128528014, 257056028, 321320035, 642640070, 1285280140]

約数ペア:

[(1, 1285280140), (2, 642640070), (4, 321320035), (5, 257056028), (10, 128528014), (20, 64264007), (1867, 688420), (3734, 344210), (7468, 172105), (9335, 137684), (18670, 68842), (34421, 37340)]