10821680

素因数分解:

$2^4\times 5^1\times {\mathrm{135271}}^1$

素因数の和:135284

約数の個数: 20

約数和(自身を含む): 25160592

約数和(自身を除く): 14338912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 135271, 270542, 541084, 676355, 1082168, 1352710, 2164336, 2705420, 5410840, 10821680]

約数ペア:

[(1, 10821680), (2, 5410840), (4, 2705420), (5, 2164336), (8, 1352710), (10, 1082168), (16, 676355), (20, 541084), (40, 270542), (80, 135271)]