20725960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{27271}}^1$

素因数の和:27301

約数の個数: 32

約数和(自身を含む): 49089600

約数和(自身を除く): 28363640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 27271, 54542, 109084, 136355, 218168, 272710, 518149, 545420, 1036298, 1090840, 2072596, 2590745, 4145192, 5181490, 10362980, 20725960]

約数ペア:

[(1, 20725960), (2, 10362980), (4, 5181490), (5, 4145192), (8, 2590745), (10, 2072596), (19, 1090840), (20, 1036298), (38, 545420), (40, 518149), (76, 272710), (95, 218168), (152, 136355), (190, 109084), (380, 54542), (760, 27271)]