1296156920

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{255149}}^1$

素因数の和:255287

約数の個数: 32

約数和(自身を含む): 2939328000

約数和(自身を除く): 1643171080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 255149, 510298, 1020596, 1275745, 2041192, 2551490, 5102980, 10205960, 32403923, 64807846, 129615692, 162019615, 259231384, 324039230, 648078460, 1296156920]

約数ペア:

[(1, 1296156920), (2, 648078460), (4, 324039230), (5, 259231384), (8, 162019615), (10, 129615692), (20, 64807846), (40, 32403923), (127, 10205960), (254, 5102980), (508, 2551490), (635, 2041192), (1016, 1275745), (1270, 1020596), (2540, 510298), (5080, 255149)]