1390960

素因数分解:

$2^4\times 5^1\times {\mathrm{17387}}^1$

素因数の和:17400

約数の個数: 20

約数和(自身を含む): 3234168

約数和(自身を除く): 1843208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 17387, 34774, 69548, 86935, 139096, 173870, 278192, 347740, 695480, 1390960]

約数ペア:

[(1, 1390960), (2, 695480), (4, 347740), (5, 278192), (8, 173870), (10, 139096), (16, 86935), (20, 69548), (40, 34774), (80, 17387)]