26517320

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1031}}^1$

素因数の和:1685

約数の個数: 32

約数和(自身を含む): 59814720

約数和(自身を除く): 33297400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1031, 1286, 2062, 2572, 3215, 4124, 5144, 5155, 6430, 8248, 10310, 12860, 20620, 25720, 41240, 662933, 1325866, 2651732, 3314665, 5303464, 6629330, 13258660, 26517320]

約数ペア:

[(1, 26517320), (2, 13258660), (4, 6629330), (5, 5303464), (8, 3314665), (10, 2651732), (20, 1325866), (40, 662933), (643, 41240), (1031, 25720), (1286, 20620), (2062, 12860), (2572, 10310), (3215, 8248), (4124, 6430), (5144, 5155)]