20121894520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{15313}}^1$

素因数の和:15382

約数の個数: 192

約数和(自身を含む): 58813110720

約数和(自身を除く): 38691216200

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 19, 20, 26, 28, 35, 38, 40, 52, 56, 65, 70, 76, 91, 95, 104, 130, 133, 140, 152, 182, 190, 247, 260, 266, 280, 361, 364, 380, 455, 494, 520, 532, 665, 722, 728, 760, 910, 988, 1064, 1235, 1330, 1444, 1729, 1805, 1820, 1976, 2470, 2527, 2660, 2888, 3458, 3610, 3640, 4693, 4940, 5054, 5320, 6916, 7220, 8645, 9386, 9880, 10108, 12635, 13832, 14440, 15313, 17290, 18772, 20216, 23465, 25270, 30626, 32851, 34580, 37544, 46930, 50540, 61252, 65702, 69160, 76565, 93860, 101080, 107191, 122504, 131404, 153130, 164255, 187720, 199069, 214382, 262808, 290947, 306260, 328510, 398138, 428764, 535955, 581894, 612520, 657020, 796276, 857528, 995345, 1071910, 1163788, 1314040, 1393483, 1454735, 1592552, 1990690, 2036629, 2143820, 2327576, 2786966, 2909470, 3782311, 3981380, 4073258, 4287640, 5527993, 5573932, 5818940, 6967415, 7564622, 7962760, 8146516, 10183145, 11055986, 11147864, 11637880, 13934830, 15129244, 16293032, 18911555, 20366290, 22111972, 26476177, 27639965, 27869660, 30258488, 37823110, 38695951, 40732580, 44223944, 52952354, 55279930, 55739320, 71863909, 75646220, 77391902, 81465160, 105904708, 110559860, 132380885, 143727818, 151292440, 154783804, 193479755, 211809416, 221119720, 264761770, 287455636, 309567608, 359319545, 386959510, 503047363, 529523540, 574911272, 718639090, 773919020, 1006094726, 1059047080, 1437278180, 1547838040, 2012189452, 2515236815, 2874556360, 4024378904, 5030473630, 10060947260, 20121894520]

約数ペア:

[(1, 20121894520), (2, 10060947260), (4, 5030473630), (5, 4024378904), (7, 2874556360), (8, 2515236815), (10, 2012189452), (13, 1547838040), (14, 1437278180), (19, 1059047080), (20, 1006094726), (26, 773919020), (28, 718639090), (35, 574911272), (38, 529523540), (40, 503047363), (52, 386959510), (56, 359319545), (65, 309567608), (70, 287455636), (76, 264761770), (91, 221119720), (95, 211809416), (104, 193479755), (130, 154783804), (133, 151292440), (140, 143727818), (152, 132380885), (182, 110559860), (190, 105904708), (247, 81465160), (260, 77391902), (266, 75646220), (280, 71863909), (361, 55739320), (364, 55279930), (380, 52952354), (455, 44223944), (494, 40732580), (520, 38695951), (532, 37823110), (665, 30258488), (722, 27869660), (728, 27639965), (760, 26476177), (910, 22111972), (988, 20366290), (1064, 18911555), (1235, 16293032), (1330, 15129244), (1444, 13934830), (1729, 11637880), (1805, 11147864), (1820, 11055986), (1976, 10183145), (2470, 8146516), (2527, 7962760), (2660, 7564622), (2888, 6967415), (3458, 5818940), (3610, 5573932), (3640, 5527993), (4693, 4287640), (4940, 4073258), (5054, 3981380), (5320, 3782311), (6916, 2909470), (7220, 2786966), (8645, 2327576), (9386, 2143820), (9880, 2036629), (10108, 1990690), (12635, 1592552), (13832, 1454735), (14440, 1393483), (15313, 1314040), (17290, 1163788), (18772, 1071910), (20216, 995345), (23465, 857528), (25270, 796276), (30626, 657020), (32851, 612520), (34580, 581894), (37544, 535955), (46930, 428764), (50540, 398138), (61252, 328510), (65702, 306260), (69160, 290947), (76565, 262808), (93860, 214382), (101080, 199069), (107191, 187720), (122504, 164255), (131404, 153130)]