28514680

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{17387}}^1$

素因数の和:17439

約数の個数: 32

約数和(自身を含む): 65726640

約数和(自身を除く): 37211960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 17387, 34774, 69548, 86935, 139096, 173870, 347740, 695480, 712867, 1425734, 2851468, 3564335, 5702936, 7128670, 14257340, 28514680]

約数ペア:

[(1, 28514680), (2, 14257340), (4, 7128670), (5, 5702936), (8, 3564335), (10, 2851468), (20, 1425734), (40, 712867), (41, 695480), (82, 347740), (164, 173870), (205, 139096), (328, 86935), (410, 69548), (820, 34774), (1640, 17387)]