28328740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{128767}}^1$

素因数の和:128787

約数の個数: 24

約数和(自身を含む): 64899072

約数和(自身を除く): 36570332

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 128767, 257534, 515068, 643835, 1287670, 1416437, 2575340, 2832874, 5665748, 7082185, 14164370, 28328740]

約数ペア:

[(1, 28328740), (2, 14164370), (4, 7082185), (5, 5665748), (10, 2832874), (11, 2575340), (20, 1416437), (22, 1287670), (44, 643835), (55, 515068), (110, 257534), (220, 128767)]