680656

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{2239}}^1$

素因数の和:2266

約数の個数: 20

約数和(自身を含む): 1388800

約数和(自身を除く): 708144

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 2239, 4478, 8956, 17912, 35824, 42541, 85082, 170164, 340328, 680656]

約数ペア:

[(1, 680656), (2, 340328), (4, 170164), (8, 85082), (16, 42541), (19, 35824), (38, 17912), (76, 8956), (152, 4478), (304, 2239)]