2644360

素因数分解:

$2^3\times 5^1\times {\mathrm{66109}}^1$

素因数の和:66120

約数の個数: 16

約数和(自身を含む): 5949900

約数和(自身を除く): 3305540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 66109, 132218, 264436, 330545, 528872, 661090, 1322180, 2644360]

約数ペア:

[(1, 2644360), (2, 1322180), (4, 661090), (5, 528872), (8, 330545), (10, 264436), (20, 132218), (40, 66109)]