16648880

素因数分解:

$2^4\times 5^1\times {\mathrm{208111}}^1$

素因数の和:208124

約数の個数: 20

約数和(自身を含む): 38708832

約数和(自身を除く): 22059952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 208111, 416222, 832444, 1040555, 1664888, 2081110, 3329776, 4162220, 8324440, 16648880]

約数ペア:

[(1, 16648880), (2, 8324440), (4, 4162220), (5, 3329776), (8, 2081110), (10, 1664888), (16, 1040555), (20, 832444), (40, 416222), (80, 208111)]