28563668

素因数分解:

$2^2\times 7^3\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:325

約数の個数: 48

約数和(自身を含む): 59136000

約数和(自身を除く): 30572332

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 109, 191, 196, 218, 343, 382, 436, 686, 763, 764, 1337, 1372, 1526, 2674, 3052, 5341, 5348, 9359, 10682, 18718, 20819, 21364, 37387, 37436, 41638, 65513, 74774, 83276, 131026, 145733, 149548, 262052, 291466, 582932, 1020131, 2040262, 4080524, 7140917, 14281834, 28563668]

約数ペア:

[(1, 28563668), (2, 14281834), (4, 7140917), (7, 4080524), (14, 2040262), (28, 1020131), (49, 582932), (98, 291466), (109, 262052), (191, 149548), (196, 145733), (218, 131026), (343, 83276), (382, 74774), (436, 65513), (686, 41638), (763, 37436), (764, 37387), (1337, 21364), (1372, 20819), (1526, 18718), (2674, 10682), (3052, 9359), (5341, 5348)]