42939560

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{4177}}^1$

素因数の和:4445

約数の個数: 32

約数和(自身を含む): 97013160

約数和(自身を除く): 54073600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 4177, 5140, 8354, 10280, 16708, 20885, 33416, 41770, 83540, 167080, 1073489, 2146978, 4293956, 5367445, 8587912, 10734890, 21469780, 42939560]

約数ペア:

[(1, 42939560), (2, 21469780), (4, 10734890), (5, 8587912), (8, 5367445), (10, 4293956), (20, 2146978), (40, 1073489), (257, 167080), (514, 83540), (1028, 41770), (1285, 33416), (2056, 20885), (2570, 16708), (4177, 10280), (5140, 8354)]