20991196656

素因数分解:

$2^4\times 3^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{257}}^1$

素因数の和:434

約数の個数: 400

約数和(自身を含む): 66891432960

約数和(自身を除く): 45900236304

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 27, 31, 36, 38, 48, 54, 57, 62, 72, 76, 81, 93, 107, 108, 114, 124, 144, 152, 162, 171, 186, 214, 216, 228, 248, 257, 279, 304, 321, 324, 342, 372, 428, 432, 456, 496, 513, 514, 558, 589, 642, 648, 684, 744, 771, 837, 856, 912, 963, 1026, 1028, 1116, 1178, 1284, 1296, 1368, 1488, 1539, 1542, 1674, 1712, 1767, 1926, 2033, 2052, 2056, 2232, 2313, 2356, 2511, 2568, 2736, 2889, 3078, 3084, 3317, 3348, 3534, 3852, 4066, 4104, 4112, 4464, 4626, 4712, 4883, 5022, 5136, 5301, 5778, 6099, 6156, 6168, 6634, 6696, 6939, 7068, 7704, 7967, 8132, 8208, 8667, 9252, 9424, 9766, 9951, 10044, 10602, 11556, 12198, 12312, 12336, 13268, 13392, 13878, 14136, 14649, 15408, 15903, 15934, 16264, 17334, 18297, 18504, 19532, 19902, 20088, 20817, 21204, 23112, 23901, 24396, 24624, 26536, 27499, 27756, 28272, 29298, 29853, 31806, 31868, 32528, 34668, 36594, 37008, 39064, 39804, 40176, 41634, 42408, 43947, 46224, 47709, 47802, 48792, 53072, 54891, 54998, 55512, 58596, 59706, 63023, 63612, 63736, 69336, 71703, 73188, 78128, 79608, 82497, 83268, 84816, 87894, 89559, 95418, 95604, 97584, 109782, 109996, 111024, 117192, 119412, 126046, 127224, 127472, 131841, 138672, 143406, 146376, 151373, 159216, 164673, 164994, 166536, 175788, 179118, 189069, 190836, 191208, 215109, 219564, 219992, 234384, 238824, 247491, 252092, 254448, 263682, 268677, 286812, 292752, 302746, 329346, 329988, 333072, 351576, 358236, 378138, 381672, 382416, 395523, 430218, 439128, 439984, 454119, 477648, 494982, 504184, 522481, 527364, 537354, 567207, 573624, 605492, 645327, 658692, 659976, 703152, 716472, 742473, 756276, 763344, 791046, 852469, 860436, 878256, 908238, 989964, 1008368, 1044962, 1054728, 1074708, 1134414, 1147248, 1210984, 1290654, 1317384, 1319952, 1362357, 1432944, 1484946, 1512552, 1567443, 1582092, 1701621, 1704938, 1720872, 1816476, 1979928, 2089924, 2109456, 2149416, 2227419, 2268828, 2421968, 2557407, 2581308, 2634768, 2724714, 2969892, 3025104, 3134886, 3164184, 3403242, 3409876, 3441744, 3632952, 3959856, 4087071, 4179848, 4298832, 4454838, 4537656, 4702329, 5104863, 5114814, 5162616, 5449428, 5939784, 6269772, 6328368, 6806484, 6819752, 7265904, 7672221, 8174142, 8359696, 8909676, 9075312, 9404658, 10209726, 10229628, 10325232, 10898856, 11879568, 12261213, 12539544, 13612968, 13639504, 14106987, 15344442, 16196911, 16348284, 17819352, 18809316, 20419452, 20459256, 21797712, 23016663, 24522426, 25079088, 27225936, 28213974, 30688884, 32393822, 32696568, 35638704, 37618632, 40838904, 40918512, 42320961, 46033326, 48590733, 49044852, 56427948, 61377768, 64787644, 65393136, 69049989, 75237264, 81677808, 84641922, 92066652, 97181466, 98089704, 112855896, 122755536, 129575288, 138099978, 145772199, 169283844, 184133304, 194362932, 196179408, 225711792, 259150576, 276199956, 291544398, 338567688, 368266608, 388725864, 437316597, 552399912, 583088796, 677135376, 777451728, 874633194, 1104799824, 1166177592, 1311949791, 1749266388, 2332355184, 2623899582, 3498532776, 5247799164, 6997065552, 10495598328, 20991196656]

約数ペア:

[(1, 20991196656), (2, 10495598328), (3, 6997065552), (4, 5247799164), (6, 3498532776), (8, 2623899582), (9, 2332355184), (12, 1749266388), (16, 1311949791), (18, 1166177592), (19, 1104799824), (24, 874633194), (27, 777451728), (31, 677135376), (36, 583088796), (38, 552399912), (48, 437316597), (54, 388725864), (57, 368266608), (62, 338567688), (72, 291544398), (76, 276199956), (81, 259150576), (93, 225711792), (107, 196179408), (108, 194362932), (114, 184133304), (124, 169283844), (144, 145772199), (152, 138099978), (162, 129575288), (171, 122755536), (186, 112855896), (214, 98089704), (216, 97181466), (228, 92066652), (248, 84641922), (257, 81677808), (279, 75237264), (304, 69049989), (321, 65393136), (324, 64787644), (342, 61377768), (372, 56427948), (428, 49044852), (432, 48590733), (456, 46033326), (496, 42320961), (513, 40918512), (514, 40838904), (558, 37618632), (589, 35638704), (642, 32696568), (648, 32393822), (684, 30688884), (744, 28213974), (771, 27225936), (837, 25079088), (856, 24522426), (912, 23016663), (963, 21797712), (1026, 20459256), (1028, 20419452), (1116, 18809316), (1178, 17819352), (1284, 16348284), (1296, 16196911), (1368, 15344442), (1488, 14106987), (1539, 13639504), (1542, 13612968), (1674, 12539544), (1712, 12261213), (1767, 11879568), (1926, 10898856), (2033, 10325232), (2052, 10229628), (2056, 10209726), (2232, 9404658), (2313, 9075312), (2356, 8909676), (2511, 8359696), (2568, 8174142), (2736, 7672221), (2889, 7265904), (3078, 6819752), (3084, 6806484), (3317, 6328368), (3348, 6269772), (3534, 5939784), (3852, 5449428), (4066, 5162616), (4104, 5114814), (4112, 5104863), (4464, 4702329), (4626, 4537656), (4712, 4454838), (4883, 4298832), (5022, 4179848), (5136, 4087071), (5301, 3959856), (5778, 3632952), (6099, 3441744), (6156, 3409876), (6168, 3403242), (6634, 3164184), (6696, 3134886), (6939, 3025104), (7068, 2969892), (7704, 2724714), (7967, 2634768), (8132, 2581308), (8208, 2557407), (8667, 2421968), (9252, 2268828), (9424, 2227419), (9766, 2149416), (9951, 2109456), (10044, 2089924), (10602, 1979928), (11556, 1816476), (12198, 1720872), (12312, 1704938), (12336, 1701621), (13268, 1582092), (13392, 1567443), (13878, 1512552), (14136, 1484946), (14649, 1432944), (15408, 1362357), (15903, 1319952), (15934, 1317384), (16264, 1290654), (17334, 1210984), (18297, 1147248), (18504, 1134414), (19532, 1074708), (19902, 1054728), (20088, 1044962), (20817, 1008368), (21204, 989964), (23112, 908238), (23901, 878256), (24396, 860436), (24624, 852469), (26536, 791046), (27499, 763344), (27756, 756276), (28272, 742473), (29298, 716472), (29853, 703152), (31806, 659976), (31868, 658692), (32528, 645327), (34668, 605492), (36594, 573624), (37008, 567207), (39064, 537354), (39804, 527364), (40176, 522481), (41634, 504184), (42408, 494982), (43947, 477648), (46224, 454119), (47709, 439984), (47802, 439128), (48792, 430218), (53072, 395523), (54891, 382416), (54998, 381672), (55512, 378138), (58596, 358236), (59706, 351576), (63023, 333072), (63612, 329988), (63736, 329346), (69336, 302746), (71703, 292752), (73188, 286812), (78128, 268677), (79608, 263682), (82497, 254448), (83268, 252092), (84816, 247491), (87894, 238824), (89559, 234384), (95418, 219992), (95604, 219564), (97584, 215109), (109782, 191208), (109996, 190836), (111024, 189069), (117192, 179118), (119412, 175788), (126046, 166536), (127224, 164994), (127472, 164673), (131841, 159216), (138672, 151373), (143406, 146376)]