28161760

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{16001}}^1$

素因数の和:16027

約数の個数: 48

約数和(自身を含む): 72585072

約数和(自身を除く): 44423312

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 16001, 32002, 64004, 80005, 128008, 160010, 176011, 256016, 320020, 352022, 512032, 640040, 704044, 880055, 1280080, 1408088, 1760110, 2560160, 2816176, 3520220, 5632352, 7040440, 14080880, 28161760]

約数ペア:

[(1, 28161760), (2, 14080880), (4, 7040440), (5, 5632352), (8, 3520220), (10, 2816176), (11, 2560160), (16, 1760110), (20, 1408088), (22, 1280080), (32, 880055), (40, 704044), (44, 640040), (55, 512032), (80, 352022), (88, 320020), (110, 256016), (160, 176011), (176, 160010), (220, 128008), (352, 80005), (440, 64004), (880, 32002), (1760, 16001)]