86979080

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{8461}}^1$

素因数の和:8729

約数の個数: 32

約数和(自身を含む): 196487640

約数和(自身を除く): 109508560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 8461, 10280, 16922, 33844, 42305, 67688, 84610, 169220, 338440, 2174477, 4348954, 8697908, 10872385, 17395816, 21744770, 43489540, 86979080]

約数ペア:

[(1, 86979080), (2, 43489540), (4, 21744770), (5, 17395816), (8, 10872385), (10, 8697908), (20, 4348954), (40, 2174477), (257, 338440), (514, 169220), (1028, 84610), (1285, 67688), (2056, 42305), (2570, 33844), (5140, 16922), (8461, 10280)]