51811520

素因数分解:

$2^6\times 5^1\times {\mathrm{161911}}^1$

素因数の和:161928

約数の個数: 28

約数和(自身を含む): 123376944

約数和(自身を除く): 71565424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 161911, 323822, 647644, 809555, 1295288, 1619110, 2590576, 3238220, 5181152, 6476440, 10362304, 12952880, 25905760, 51811520]

約数ペア:

[(1, 51811520), (2, 25905760), (4, 12952880), (5, 10362304), (8, 6476440), (10, 5181152), (16, 3238220), (20, 2590576), (32, 1619110), (40, 1295288), (64, 809555), (80, 647644), (160, 323822), (320, 161911)]