28076780

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{10247}}^1$

素因数の和:10393

約数の個数: 24

約数和(自身を含む): 59397408

約数和(自身を除く): 31320628

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 10247, 20494, 40988, 51235, 102470, 204940, 1403839, 2807678, 5615356, 7019195, 14038390, 28076780]

約数ペア:

[(1, 28076780), (2, 14038390), (4, 7019195), (5, 5615356), (10, 2807678), (20, 1403839), (137, 204940), (274, 102470), (548, 51235), (685, 40988), (1370, 20494), (2740, 10247)]