209525820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:292

約数の個数: 192

約数和(自身を含む): 700707840

約数和(自身を除く): 491182020

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 37, 42, 60, 70, 74, 84, 97, 105, 111, 139, 140, 148, 185, 194, 210, 222, 259, 278, 291, 370, 388, 417, 420, 444, 485, 518, 555, 556, 582, 679, 695, 740, 777, 834, 970, 973, 1036, 1110, 1164, 1295, 1358, 1390, 1455, 1554, 1668, 1940, 1946, 2037, 2085, 2220, 2590, 2716, 2780, 2910, 2919, 3108, 3395, 3589, 3885, 3892, 4074, 4170, 4865, 5143, 5180, 5820, 5838, 6790, 7178, 7770, 8148, 8340, 9730, 10185, 10286, 10767, 11676, 13483, 13580, 14356, 14595, 15429, 15540, 17945, 19460, 20370, 20572, 21534, 25123, 25715, 26966, 29190, 30858, 35890, 36001, 40449, 40740, 43068, 50246, 51430, 53835, 53932, 58380, 61716, 67415, 71780, 72002, 75369, 77145, 80898, 94381, 100492, 102860, 107670, 108003, 125615, 134830, 144004, 150738, 154290, 161796, 180005, 188762, 202245, 215340, 216006, 251230, 269660, 283143, 301476, 308580, 360010, 376845, 377524, 404490, 432012, 471905, 498871, 502460, 540015, 566286, 720020, 753690, 808980, 943810, 997742, 1080030, 1132572, 1415715, 1496613, 1507380, 1887620, 1995484, 2160060, 2494355, 2831430, 2993226, 3492097, 4988710, 5662860, 5986452, 6984194, 7483065, 9977420, 10476291, 13968388, 14966130, 17460485, 20952582, 29932260, 34920970, 41905164, 52381455, 69841940, 104762910, 209525820]

約数ペア:

[(1, 209525820), (2, 104762910), (3, 69841940), (4, 52381455), (5, 41905164), (6, 34920970), (7, 29932260), (10, 20952582), (12, 17460485), (14, 14966130), (15, 13968388), (20, 10476291), (21, 9977420), (28, 7483065), (30, 6984194), (35, 5986452), (37, 5662860), (42, 4988710), (60, 3492097), (70, 2993226), (74, 2831430), (84, 2494355), (97, 2160060), (105, 1995484), (111, 1887620), (139, 1507380), (140, 1496613), (148, 1415715), (185, 1132572), (194, 1080030), (210, 997742), (222, 943810), (259, 808980), (278, 753690), (291, 720020), (370, 566286), (388, 540015), (417, 502460), (420, 498871), (444, 471905), (485, 432012), (518, 404490), (555, 377524), (556, 376845), (582, 360010), (679, 308580), (695, 301476), (740, 283143), (777, 269660), (834, 251230), (970, 216006), (973, 215340), (1036, 202245), (1110, 188762), (1164, 180005), (1295, 161796), (1358, 154290), (1390, 150738), (1455, 144004), (1554, 134830), (1668, 125615), (1940, 108003), (1946, 107670), (2037, 102860), (2085, 100492), (2220, 94381), (2590, 80898), (2716, 77145), (2780, 75369), (2910, 72002), (2919, 71780), (3108, 67415), (3395, 61716), (3589, 58380), (3885, 53932), (3892, 53835), (4074, 51430), (4170, 50246), (4865, 43068), (5143, 40740), (5180, 40449), (5820, 36001), (5838, 35890), (6790, 30858), (7178, 29190), (7770, 26966), (8148, 25715), (8340, 25123), (9730, 21534), (10185, 20572), (10286, 20370), (10767, 19460), (11676, 17945), (13483, 15540), (13580, 15429), (14356, 14595)]