250413640

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{193}}^1\times {\mathrm{199}}^1$

素因数の和:566

約数の個数: 64

約数和(自身を含む): 572688000

約数和(自身を除く): 322274360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 193, 199, 326, 386, 398, 652, 772, 796, 815, 965, 995, 1304, 1544, 1592, 1630, 1930, 1990, 3260, 3860, 3980, 6520, 7720, 7960, 31459, 32437, 38407, 62918, 64874, 76814, 125836, 129748, 153628, 157295, 162185, 192035, 251672, 259496, 307256, 314590, 324370, 384070, 629180, 648740, 768140, 1258360, 1297480, 1536280, 6260341, 12520682, 25041364, 31301705, 50082728, 62603410, 125206820, 250413640]

約数ペア:

[(1, 250413640), (2, 125206820), (4, 62603410), (5, 50082728), (8, 31301705), (10, 25041364), (20, 12520682), (40, 6260341), (163, 1536280), (193, 1297480), (199, 1258360), (326, 768140), (386, 648740), (398, 629180), (652, 384070), (772, 324370), (796, 314590), (815, 307256), (965, 259496), (995, 251672), (1304, 192035), (1544, 162185), (1592, 157295), (1630, 153628), (1930, 129748), (1990, 125836), (3260, 76814), (3860, 64874), (3980, 62918), (6520, 38407), (7720, 32437), (7960, 31459)]