2009131880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{1399}}^1$

素因数の和:1663

約数の個数: 128

約数和(自身を含む): 5419008000

約数和(自身を除く): 3409876120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 223, 230, 280, 322, 446, 460, 644, 805, 892, 920, 1115, 1288, 1399, 1561, 1610, 1784, 2230, 2798, 3122, 3220, 4460, 5129, 5596, 6244, 6440, 6995, 7805, 8920, 9793, 10258, 11192, 12488, 13990, 15610, 19586, 20516, 25645, 27980, 31220, 32177, 35903, 39172, 41032, 48965, 51290, 55960, 62440, 64354, 71806, 78344, 97930, 102580, 128708, 143612, 160885, 179515, 195860, 205160, 225239, 257416, 287224, 311977, 321770, 359030, 391720, 450478, 623954, 643540, 718060, 900956, 1126195, 1247908, 1287080, 1436120, 1559885, 1801912, 2183839, 2252390, 2495816, 3119770, 4367678, 4504780, 6239540, 7175471, 8735356, 9009560, 10919195, 12479080, 14350942, 17470712, 21838390, 28701884, 35877355, 43676780, 50228297, 57403768, 71754710, 87353560, 100456594, 143509420, 200913188, 251141485, 287018840, 401826376, 502282970, 1004565940, 2009131880]

約数ペア:

[(1, 2009131880), (2, 1004565940), (4, 502282970), (5, 401826376), (7, 287018840), (8, 251141485), (10, 200913188), (14, 143509420), (20, 100456594), (23, 87353560), (28, 71754710), (35, 57403768), (40, 50228297), (46, 43676780), (56, 35877355), (70, 28701884), (92, 21838390), (115, 17470712), (140, 14350942), (161, 12479080), (184, 10919195), (223, 9009560), (230, 8735356), (280, 7175471), (322, 6239540), (446, 4504780), (460, 4367678), (644, 3119770), (805, 2495816), (892, 2252390), (920, 2183839), (1115, 1801912), (1288, 1559885), (1399, 1436120), (1561, 1287080), (1610, 1247908), (1784, 1126195), (2230, 900956), (2798, 718060), (3122, 643540), (3220, 623954), (4460, 450478), (5129, 391720), (5596, 359030), (6244, 321770), (6440, 311977), (6995, 287224), (7805, 257416), (8920, 225239), (9793, 205160), (10258, 195860), (11192, 179515), (12488, 160885), (13990, 143612), (15610, 128708), (19586, 102580), (20516, 97930), (25645, 78344), (27980, 71806), (31220, 64354), (32177, 62440), (35903, 55960), (39172, 51290), (41032, 48965)]