8455280

素因数分解:

$2^4\times 5^1\times {\mathrm{105691}}^1$

素因数の和:105704

約数の個数: 20

約数和(自身を含む): 19658712

約数和(自身を除く): 11203432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 105691, 211382, 422764, 528455, 845528, 1056910, 1691056, 2113820, 4227640, 8455280]

約数ペア:

[(1, 8455280), (2, 4227640), (4, 2113820), (5, 1691056), (8, 1056910), (10, 845528), (16, 528455), (20, 422764), (40, 211382), (80, 105691)]