20195876380

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{2595871}}^1$

素因数の和:2596269

約数の個数: 24

約数和(自身を含む): 42520383360

約数和(自身を除く): 22324506980

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 7780, 2595871, 5191742, 10383484, 12979355, 25958710, 51917420, 1009793819, 2019587638, 4039175276, 5048969095, 10097938190, 20195876380]

約数ペア:

[(1, 20195876380), (2, 10097938190), (4, 5048969095), (5, 4039175276), (10, 2019587638), (20, 1009793819), (389, 51917420), (778, 25958710), (1556, 12979355), (1945, 10383484), (3890, 5191742), (7780, 2595871)]