28279540

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{10321}}^1$

素因数の和:10467

約数の個数: 24

約数和(自身を含む): 59826312

約数和(自身を除く): 31546772

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 10321, 20642, 41284, 51605, 103210, 206420, 1413977, 2827954, 5655908, 7069885, 14139770, 28279540]

約数ペア:

[(1, 28279540), (2, 14139770), (4, 7069885), (5, 5655908), (10, 2827954), (20, 1413977), (137, 206420), (274, 103210), (548, 51605), (685, 41284), (1370, 20642), (2740, 10321)]