890228740

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{324901}}^1$

素因数の和:325047

約数の個数: 24

約数和(自身を含む): 1883131992

約数和(自身を除く): 992903252

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 324901, 649802, 1299604, 1624505, 3249010, 6498020, 44511437, 89022874, 178045748, 222557185, 445114370, 890228740]

約数ペア:

[(1, 890228740), (2, 445114370), (4, 222557185), (5, 178045748), (10, 89022874), (20, 44511437), (137, 6498020), (274, 3249010), (548, 1624505), (685, 1299604), (1370, 649802), (2740, 324901)]