20288656

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{66739}}^1$

素因数の和:66766

約数の個数: 20

約数和(自身を含む): 41378800

約数和(自身を除く): 21090144

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 66739, 133478, 266956, 533912, 1067824, 1268041, 2536082, 5072164, 10144328, 20288656]

約数ペア:

[(1, 20288656), (2, 10144328), (4, 5072164), (8, 2536082), (16, 1268041), (19, 1067824), (38, 533912), (76, 266956), (152, 133478), (304, 66739)]