2556820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{2609}}^1$

素因数の和:2632

約数の個数: 36

約数和(自身を含む): 6248340

約数和(自身を除く): 3691520

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 2609, 5218, 10436, 13045, 18263, 26090, 36526, 52180, 73052, 91315, 127841, 182630, 255682, 365260, 511364, 639205, 1278410, 2556820]

約数ペア:

[(1, 2556820), (2, 1278410), (4, 639205), (5, 511364), (7, 365260), (10, 255682), (14, 182630), (20, 127841), (28, 91315), (35, 73052), (49, 52180), (70, 36526), (98, 26090), (140, 18263), (196, 13045), (245, 10436), (490, 5218), (980, 2609)]