20454220920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{251}}^1\times {\mathrm{13859}}^1$

素因数の和:14138

約数の個数: 192

約数和(自身を含む): 71670614400

約数和(自身を除く): 51216393480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 251, 280, 294, 392, 420, 490, 502, 588, 735, 753, 840, 980, 1004, 1176, 1255, 1470, 1506, 1757, 1960, 2008, 2510, 2940, 3012, 3514, 3765, 5020, 5271, 5880, 6024, 7028, 7530, 8785, 10040, 10542, 12299, 13859, 14056, 15060, 17570, 21084, 24598, 26355, 27718, 30120, 35140, 36897, 41577, 42168, 49196, 52710, 55436, 61495, 69295, 70280, 73794, 83154, 97013, 98392, 105420, 110872, 122990, 138590, 147588, 166308, 184485, 194026, 207885, 210840, 245980, 277180, 291039, 295176, 332616, 368970, 388052, 415770, 485065, 491960, 554360, 582078, 679091, 737940, 776104, 831540, 970130, 1164156, 1358182, 1455195, 1475880, 1663080, 1940260, 2037273, 2328312, 2716364, 2910390, 3395455, 3478609, 3880520, 4074546, 5432728, 5820780, 6790910, 6957218, 8149092, 10186365, 10435827, 11641560, 13581820, 13914436, 16298184, 17393045, 20372730, 20871654, 24350263, 27163640, 27828872, 34786090, 40745460, 41743308, 48700526, 52179135, 69572180, 73050789, 81490920, 83486616, 97401052, 104358270, 121751315, 139144360, 146101578, 170451841, 194802104, 208716540, 243502630, 292203156, 340903682, 365253945, 417433080, 487005260, 511355523, 584406312, 681807364, 730507890, 852259205, 974010520, 1022711046, 1363614728, 1461015780, 1704518410, 2045422092, 2556777615, 2922031560, 3409036820, 4090844184, 5113555230, 6818073640, 10227110460, 20454220920]

約数ペア:

[(1, 20454220920), (2, 10227110460), (3, 6818073640), (4, 5113555230), (5, 4090844184), (6, 3409036820), (7, 2922031560), (8, 2556777615), (10, 2045422092), (12, 1704518410), (14, 1461015780), (15, 1363614728), (20, 1022711046), (21, 974010520), (24, 852259205), (28, 730507890), (30, 681807364), (35, 584406312), (40, 511355523), (42, 487005260), (49, 417433080), (56, 365253945), (60, 340903682), (70, 292203156), (84, 243502630), (98, 208716540), (105, 194802104), (120, 170451841), (140, 146101578), (147, 139144360), (168, 121751315), (196, 104358270), (210, 97401052), (245, 83486616), (251, 81490920), (280, 73050789), (294, 69572180), (392, 52179135), (420, 48700526), (490, 41743308), (502, 40745460), (588, 34786090), (735, 27828872), (753, 27163640), (840, 24350263), (980, 20871654), (1004, 20372730), (1176, 17393045), (1255, 16298184), (1470, 13914436), (1506, 13581820), (1757, 11641560), (1960, 10435827), (2008, 10186365), (2510, 8149092), (2940, 6957218), (3012, 6790910), (3514, 5820780), (3765, 5432728), (5020, 4074546), (5271, 3880520), (5880, 3478609), (6024, 3395455), (7028, 2910390), (7530, 2716364), (8785, 2328312), (10040, 2037273), (10542, 1940260), (12299, 1663080), (13859, 1475880), (14056, 1455195), (15060, 1358182), (17570, 1164156), (21084, 970130), (24598, 831540), (26355, 776104), (27718, 737940), (30120, 679091), (35140, 582078), (36897, 554360), (41577, 491960), (42168, 485065), (49196, 415770), (52710, 388052), (55436, 368970), (61495, 332616), (69295, 295176), (70280, 291039), (73794, 277180), (83154, 245980), (97013, 210840), (98392, 207885), (105420, 194026), (110872, 184485), (122990, 166308), (138590, 147588)]