878303979

素因数分解:

$3^4\times 7^3\times {\mathrm{101}}^1\times {\mathrm{313}}^1$

素因数の和:447

約数の個数: 80

約数和(自身を含む): 1550155200

約数和(自身を除く): 671851221

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 101, 147, 189, 303, 313, 343, 441, 567, 707, 909, 939, 1029, 1323, 2121, 2191, 2727, 2817, 3087, 3969, 4949, 6363, 6573, 8181, 8451, 9261, 14847, 15337, 19089, 19719, 25353, 27783, 31613, 34643, 44541, 46011, 57267, 59157, 94839, 103929, 107359, 133623, 138033, 177471, 221291, 284517, 311787, 322077, 400869, 414099, 663873, 853551, 935361, 966231, 1242297, 1549037, 1991619, 2560653, 2806083, 2898693, 4647111, 5974857, 8696079, 10843259, 13941333, 17924571, 32529777, 41823999, 97589331, 125471997, 292767993, 878303979]

約数ペア:

[(1, 878303979), (3, 292767993), (7, 125471997), (9, 97589331), (21, 41823999), (27, 32529777), (49, 17924571), (63, 13941333), (81, 10843259), (101, 8696079), (147, 5974857), (189, 4647111), (303, 2898693), (313, 2806083), (343, 2560653), (441, 1991619), (567, 1549037), (707, 1242297), (909, 966231), (939, 935361), (1029, 853551), (1323, 663873), (2121, 414099), (2191, 400869), (2727, 322077), (2817, 311787), (3087, 284517), (3969, 221291), (4949, 177471), (6363, 138033), (6573, 133623), (8181, 107359), (8451, 103929), (9261, 94839), (14847, 59157), (15337, 57267), (19089, 46011), (19719, 44541), (25353, 34643), (27783, 31613)]