8910280

素因数分解:

$2^3\times 5^1\times {\mathrm{337}}^1\times {\mathrm{661}}^1$

素因数の和:1009

約数の個数: 32

約数和(自身を含む): 20138040

約数和(自身を除く): 11227760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 337, 661, 674, 1322, 1348, 1685, 2644, 2696, 3305, 3370, 5288, 6610, 6740, 13220, 13480, 26440, 222757, 445514, 891028, 1113785, 1782056, 2227570, 4455140, 8910280]

約数ペア:

[(1, 8910280), (2, 4455140), (4, 2227570), (5, 1782056), (8, 1113785), (10, 891028), (20, 445514), (40, 222757), (337, 26440), (661, 13480), (674, 13220), (1322, 6740), (1348, 6610), (1685, 5288), (2644, 3370), (2696, 3305)]