28349420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{128861}}^1$

素因数の和:128881

約数の個数: 24

約数和(自身を含む): 64946448

約数和(自身を除く): 36597028

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 128861, 257722, 515444, 644305, 1288610, 1417471, 2577220, 2834942, 5669884, 7087355, 14174710, 28349420]

約数ペア:

[(1, 28349420), (2, 14174710), (4, 7087355), (5, 5669884), (10, 2834942), (11, 2577220), (20, 1417471), (22, 1288610), (44, 644305), (55, 515444), (110, 257722), (220, 128861)]