77901208

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:257

約数の個数: 128

約数和(自身を含む): 198443520

約数和(自身を除く): 120542312

約数列:

[1, 2, 4, 7, 8, 11, 14, 17, 22, 28, 34, 43, 44, 56, 68, 77, 86, 88, 119, 136, 154, 172, 173, 187, 238, 301, 308, 344, 346, 374, 473, 476, 602, 616, 692, 731, 748, 946, 952, 1204, 1211, 1309, 1384, 1462, 1496, 1892, 1903, 2408, 2422, 2618, 2924, 2941, 3311, 3784, 3806, 4844, 5117, 5236, 5848, 5882, 6622, 7439, 7612, 8041, 9688, 10234, 10472, 11764, 13244, 13321, 14878, 15224, 16082, 20468, 20587, 23528, 26488, 26642, 29756, 32164, 32351, 40936, 41174, 52073, 53284, 56287, 59512, 64328, 64702, 81829, 82348, 104146, 106568, 112574, 126463, 129404, 163658, 164696, 208292, 225148, 226457, 252926, 258808, 327316, 416584, 450296, 452914, 505852, 572803, 654632, 885241, 905828, 1011704, 1145606, 1391093, 1770482, 1811656, 2291212, 2782186, 3540964, 4582424, 5564372, 7081928, 9737651, 11128744, 19475302, 38950604, 77901208]

約数ペア:

[(1, 77901208), (2, 38950604), (4, 19475302), (7, 11128744), (8, 9737651), (11, 7081928), (14, 5564372), (17, 4582424), (22, 3540964), (28, 2782186), (34, 2291212), (43, 1811656), (44, 1770482), (56, 1391093), (68, 1145606), (77, 1011704), (86, 905828), (88, 885241), (119, 654632), (136, 572803), (154, 505852), (172, 452914), (173, 450296), (187, 416584), (238, 327316), (301, 258808), (308, 252926), (344, 226457), (346, 225148), (374, 208292), (473, 164696), (476, 163658), (602, 129404), (616, 126463), (692, 112574), (731, 106568), (748, 104146), (946, 82348), (952, 81829), (1204, 64702), (1211, 64328), (1309, 59512), (1384, 56287), (1462, 53284), (1496, 52073), (1892, 41174), (1903, 40936), (2408, 32351), (2422, 32164), (2618, 29756), (2924, 26642), (2941, 26488), (3311, 23528), (3784, 20587), (3806, 20468), (4844, 16082), (5117, 15224), (5236, 14878), (5848, 13321), (5882, 13244), (6622, 11764), (7439, 10472), (7612, 10234), (8041, 9688)]