128486440

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{10133}}^1$

素因数の和:10461

約数の個数: 32

約数和(自身を含む): 290035080

約数和(自身を除く): 161548640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 2536, 3170, 6340, 10133, 12680, 20266, 40532, 50665, 81064, 101330, 202660, 405320, 3212161, 6424322, 12848644, 16060805, 25697288, 32121610, 64243220, 128486440]

約数ペア:

[(1, 128486440), (2, 64243220), (4, 32121610), (5, 25697288), (8, 16060805), (10, 12848644), (20, 6424322), (40, 3212161), (317, 405320), (634, 202660), (1268, 101330), (1585, 81064), (2536, 50665), (3170, 40532), (6340, 20266), (10133, 12680)]