644363280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{81359}}^1$

素因数の和:81389

約数の個数: 120

約数和(自身を含む): 2360741760

約数和(自身を除く): 1716378480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2640, 3960, 7920, 81359, 162718, 244077, 325436, 406795, 488154, 650872, 732231, 813590, 894949, 976308, 1220385, 1301744, 1464462, 1627180, 1789898, 1952616, 2440770, 2684847, 2928924, 3254360, 3579796, 3661155, 3905232, 4474745, 4881540, 5369694, 5857848, 6508720, 7159592, 7322310, 8054541, 8949490, 9763080, 10739388, 11715696, 13424235, 14319184, 14644620, 16109082, 17898980, 19526160, 21478776, 26848470, 29289240, 32218164, 35797960, 40272705, 42957552, 53696940, 58578480, 64436328, 71595920, 80545410, 107393880, 128872656, 161090820, 214787760, 322181640, 644363280]

約数ペア:

[(1, 644363280), (2, 322181640), (3, 214787760), (4, 161090820), (5, 128872656), (6, 107393880), (8, 80545410), (9, 71595920), (10, 64436328), (11, 58578480), (12, 53696940), (15, 42957552), (16, 40272705), (18, 35797960), (20, 32218164), (22, 29289240), (24, 26848470), (30, 21478776), (33, 19526160), (36, 17898980), (40, 16109082), (44, 14644620), (45, 14319184), (48, 13424235), (55, 11715696), (60, 10739388), (66, 9763080), (72, 8949490), (80, 8054541), (88, 7322310), (90, 7159592), (99, 6508720), (110, 5857848), (120, 5369694), (132, 4881540), (144, 4474745), (165, 3905232), (176, 3661155), (180, 3579796), (198, 3254360), (220, 2928924), (240, 2684847), (264, 2440770), (330, 1952616), (360, 1789898), (396, 1627180), (440, 1464462), (495, 1301744), (528, 1220385), (660, 976308), (720, 894949), (792, 813590), (880, 732231), (990, 650872), (1320, 488154), (1584, 406795), (1980, 325436), (2640, 244077), (3960, 162718), (7920, 81359)]