20616160

素因数分解:

$2^5\times 5^1\times {\mathrm{269}}^1\times {\mathrm{479}}^1$

素因数の和:763

約数の個数: 48

約数和(自身を含む): 48988800

約数和(自身を除く): 28372640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 269, 479, 538, 958, 1076, 1345, 1916, 2152, 2395, 2690, 3832, 4304, 4790, 5380, 7664, 8608, 9580, 10760, 15328, 19160, 21520, 38320, 43040, 76640, 128851, 257702, 515404, 644255, 1030808, 1288510, 2061616, 2577020, 4123232, 5154040, 10308080, 20616160]

約数ペア:

[(1, 20616160), (2, 10308080), (4, 5154040), (5, 4123232), (8, 2577020), (10, 2061616), (16, 1288510), (20, 1030808), (32, 644255), (40, 515404), (80, 257702), (160, 128851), (269, 76640), (479, 43040), (538, 38320), (958, 21520), (1076, 19160), (1345, 15328), (1916, 10760), (2152, 9580), (2395, 8608), (2690, 7664), (3832, 5380), (4304, 4790)]