209345380

素因数分解:

$2^2\times 5^1\times {\mathrm{1657}}^1\times {\mathrm{6317}}^1$

素因数の和:7983

約数の個数: 24

約数和(自身を含む): 439960248

約数和(自身を除く): 230614868

約数列:

[1, 2, 4, 5, 10, 20, 1657, 3314, 6317, 6628, 8285, 12634, 16570, 25268, 31585, 33140, 63170, 126340, 10467269, 20934538, 41869076, 52336345, 104672690, 209345380]

約数ペア:

[(1, 209345380), (2, 104672690), (4, 52336345), (5, 41869076), (10, 20934538), (20, 10467269), (1657, 126340), (3314, 63170), (6317, 33140), (6628, 31585), (8285, 25268), (12634, 16570)]