206982405

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:240

約数の個数: 128

約数和(自身を含む): 447897600

約数和(自身を除く): 240915195

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 27, 35, 45, 63, 69, 89, 105, 107, 115, 135, 161, 189, 207, 267, 315, 321, 345, 445, 483, 535, 621, 623, 749, 801, 805, 945, 963, 1035, 1335, 1449, 1605, 1869, 2047, 2247, 2403, 2415, 2461, 2889, 3105, 3115, 3745, 4005, 4347, 4815, 5607, 6141, 6741, 7245, 7383, 9345, 9523, 10235, 11235, 12015, 12305, 14329, 14445, 16821, 17227, 18423, 20223, 21735, 22149, 28035, 28569, 30705, 33705, 36915, 42987, 47615, 51681, 55269, 66447, 66661, 71645, 84105, 85707, 86135, 92115, 101115, 110745, 128961, 142845, 155043, 199983, 214935, 219029, 257121, 258405, 276345, 332235, 333305, 386883, 428535, 465129, 599949, 644805, 657087, 775215, 999915, 1095145, 1285605, 1533203, 1799847, 1934415, 1971261, 2325645, 2999745, 3285435, 4599609, 5913783, 7666015, 8999235, 9856305, 13798827, 22998045, 29568915, 41396481, 68994135, 206982405]

約数ペア:

[(1, 206982405), (3, 68994135), (5, 41396481), (7, 29568915), (9, 22998045), (15, 13798827), (21, 9856305), (23, 8999235), (27, 7666015), (35, 5913783), (45, 4599609), (63, 3285435), (69, 2999745), (89, 2325645), (105, 1971261), (107, 1934415), (115, 1799847), (135, 1533203), (161, 1285605), (189, 1095145), (207, 999915), (267, 775215), (315, 657087), (321, 644805), (345, 599949), (445, 465129), (483, 428535), (535, 386883), (621, 333305), (623, 332235), (749, 276345), (801, 258405), (805, 257121), (945, 219029), (963, 214935), (1035, 199983), (1335, 155043), (1449, 142845), (1605, 128961), (1869, 110745), (2047, 101115), (2247, 92115), (2403, 86135), (2415, 85707), (2461, 84105), (2889, 71645), (3105, 66661), (3115, 66447), (3745, 55269), (4005, 51681), (4347, 47615), (4815, 42987), (5607, 36915), (6141, 33705), (6741, 30705), (7245, 28569), (7383, 28035), (9345, 22149), (9523, 21735), (10235, 20223), (11235, 18423), (12015, 17227), (12305, 16821), (14329, 14445)]