77824220

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{28403}}^1$

素因数の和:28549

約数の個数: 24

約数和(自身を含む): 164629584

約数和(自身を除く): 86805364

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 28403, 56806, 113612, 142015, 284030, 568060, 3891211, 7782422, 15564844, 19456055, 38912110, 77824220]

約数ペア:

[(1, 77824220), (2, 38912110), (4, 19456055), (5, 15564844), (10, 7782422), (20, 3891211), (137, 568060), (274, 284030), (548, 142015), (685, 113612), (1370, 56806), (2740, 28403)]