20175156800

素因数分解:

$2^6\times 5^2\times {\mathrm{1009}}^1\times {\mathrm{12497}}^1$

素因数の和:13528

約数の個数: 84

約数和(自身を含む): 49696672260

約数和(自身を除く): 29521515460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1009, 1600, 2018, 4036, 5045, 8072, 10090, 12497, 16144, 20180, 24994, 25225, 32288, 40360, 49988, 50450, 62485, 64576, 80720, 99976, 100900, 124970, 161440, 199952, 201800, 249940, 312425, 322880, 399904, 403600, 499880, 624850, 799808, 807200, 999760, 1249700, 1614400, 1999520, 2499400, 3999040, 4998800, 9997600, 12609473, 19995200, 25218946, 50437892, 63047365, 100875784, 126094730, 201751568, 252189460, 315236825, 403503136, 504378920, 630473650, 807006272, 1008757840, 1260947300, 2017515680, 2521894600, 4035031360, 5043789200, 10087578400, 20175156800]

約数ペア:

[(1, 20175156800), (2, 10087578400), (4, 5043789200), (5, 4035031360), (8, 2521894600), (10, 2017515680), (16, 1260947300), (20, 1008757840), (25, 807006272), (32, 630473650), (40, 504378920), (50, 403503136), (64, 315236825), (80, 252189460), (100, 201751568), (160, 126094730), (200, 100875784), (320, 63047365), (400, 50437892), (800, 25218946), (1009, 19995200), (1600, 12609473), (2018, 9997600), (4036, 4998800), (5045, 3999040), (8072, 2499400), (10090, 1999520), (12497, 1614400), (16144, 1249700), (20180, 999760), (24994, 807200), (25225, 799808), (32288, 624850), (40360, 499880), (49988, 403600), (50450, 399904), (62485, 322880), (64576, 312425), (80720, 249940), (99976, 201800), (100900, 199952), (124970, 161440)]