10521820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{27689}}^1$

素因数の和:27717

約数の個数: 24

約数和(自身を含む): 23259600

約数和(自身を除く): 12737780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 27689, 55378, 110756, 138445, 276890, 526091, 553780, 1052182, 2104364, 2630455, 5260910, 10521820]

約数ペア:

[(1, 10521820), (2, 5260910), (4, 2630455), (5, 2104364), (10, 1052182), (19, 553780), (20, 526091), (38, 276890), (76, 138445), (95, 110756), (190, 55378), (380, 27689)]