85549220

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{21713}}^1$

素因数の和:21919

約数の個数: 24

約数和(自身を含む): 180573624

約数和(自身を除く): 95024404

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 21713, 43426, 86852, 108565, 217130, 434260, 4277461, 8554922, 17109844, 21387305, 42774610, 85549220]

約数ペア:

[(1, 85549220), (2, 42774610), (4, 21387305), (5, 17109844), (10, 8554922), (20, 4277461), (197, 434260), (394, 217130), (788, 108565), (985, 86852), (1970, 43426), (3940, 21713)]