19902858080

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{269}}^1\times {\mathrm{2131}}^1$

素因数の和:2453

約数の個数: 192

約数和(自身を含む): 55703531520

約数和(自身を除く): 35800673440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 160, 217, 224, 248, 269, 280, 310, 434, 496, 538, 560, 620, 868, 992, 1076, 1085, 1120, 1240, 1345, 1736, 1883, 2131, 2152, 2170, 2480, 2690, 3472, 3766, 4262, 4304, 4340, 4960, 5380, 6944, 7532, 8339, 8524, 8608, 8680, 9415, 10655, 10760, 14917, 15064, 16678, 17048, 17360, 18830, 21310, 21520, 29834, 30128, 33356, 34096, 34720, 37660, 41695, 42620, 43040, 58373, 59668, 60256, 66061, 66712, 68192, 74585, 75320, 83390, 85240, 116746, 119336, 132122, 133424, 149170, 150640, 166780, 170480, 233492, 238672, 264244, 266848, 291865, 298340, 301280, 330305, 333560, 340960, 462427, 466984, 477344, 528488, 573239, 583730, 596680, 660610, 667120, 924854, 933968, 1056976, 1146478, 1167460, 1193360, 1321220, 1334240, 1849708, 1867936, 2113952, 2292956, 2312135, 2334920, 2386720, 2642440, 2866195, 3699416, 4012673, 4585912, 4624270, 4669840, 5284880, 5732390, 7398832, 8025346, 9171824, 9248540, 9339680, 10569760, 11464780, 14797664, 16050692, 17770409, 18343648, 18497080, 20063365, 22929560, 32101384, 35540818, 36994160, 40126730, 45859120, 64202768, 71081636, 73988320, 80253460, 88852045, 91718240, 124392863, 128405536, 142163272, 160506920, 177704090, 248785726, 284326544, 321013840, 355408180, 497571452, 568653088, 621964315, 642027680, 710816360, 995142904, 1243928630, 1421632720, 1990285808, 2487857260, 2843265440, 3980571616, 4975714520, 9951429040, 19902858080]

約数ペア:

[(1, 19902858080), (2, 9951429040), (4, 4975714520), (5, 3980571616), (7, 2843265440), (8, 2487857260), (10, 1990285808), (14, 1421632720), (16, 1243928630), (20, 995142904), (28, 710816360), (31, 642027680), (32, 621964315), (35, 568653088), (40, 497571452), (56, 355408180), (62, 321013840), (70, 284326544), (80, 248785726), (112, 177704090), (124, 160506920), (140, 142163272), (155, 128405536), (160, 124392863), (217, 91718240), (224, 88852045), (248, 80253460), (269, 73988320), (280, 71081636), (310, 64202768), (434, 45859120), (496, 40126730), (538, 36994160), (560, 35540818), (620, 32101384), (868, 22929560), (992, 20063365), (1076, 18497080), (1085, 18343648), (1120, 17770409), (1240, 16050692), (1345, 14797664), (1736, 11464780), (1883, 10569760), (2131, 9339680), (2152, 9248540), (2170, 9171824), (2480, 8025346), (2690, 7398832), (3472, 5732390), (3766, 5284880), (4262, 4669840), (4304, 4624270), (4340, 4585912), (4960, 4012673), (5380, 3699416), (6944, 2866195), (7532, 2642440), (8339, 2386720), (8524, 2334920), (8608, 2312135), (8680, 2292956), (9415, 2113952), (10655, 1867936), (10760, 1849708), (14917, 1334240), (15064, 1321220), (16678, 1193360), (17048, 1167460), (17360, 1146478), (18830, 1056976), (21310, 933968), (21520, 924854), (29834, 667120), (30128, 660610), (33356, 596680), (34096, 583730), (34720, 573239), (37660, 528488), (41695, 477344), (42620, 466984), (43040, 462427), (58373, 340960), (59668, 333560), (60256, 330305), (66061, 301280), (66712, 298340), (68192, 291865), (74585, 266848), (75320, 264244), (83390, 238672), (85240, 233492), (116746, 170480), (119336, 166780), (132122, 150640), (133424, 149170)]