16408880

素因数分解:

$2^4\times 5^1\times {\mathrm{205111}}^1$

素因数の和:205124

約数の個数: 20

約数和(自身を含む): 38150832

約数和(自身を除く): 21741952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 205111, 410222, 820444, 1025555, 1640888, 2051110, 3281776, 4102220, 8204440, 16408880]

約数ペア:

[(1, 16408880), (2, 8204440), (4, 4102220), (5, 3281776), (8, 2051110), (10, 1640888), (16, 1025555), (20, 820444), (40, 410222), (80, 205111)]