21920487120

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{10531}}^1$

素因数の和:10623

約数の個数: 360

約数和(自身を含む): 87095005920

約数和(自身を除く): 65174518800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 59, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 118, 120, 126, 140, 144, 147, 168, 177, 180, 196, 210, 236, 240, 245, 252, 280, 294, 295, 315, 336, 354, 360, 392, 413, 420, 441, 472, 490, 504, 531, 560, 588, 590, 630, 708, 720, 735, 784, 826, 840, 882, 885, 944, 980, 1008, 1062, 1176, 1180, 1239, 1260, 1416, 1470, 1652, 1680, 1764, 1770, 1960, 2065, 2124, 2205, 2352, 2360, 2478, 2520, 2655, 2832, 2891, 2940, 3304, 3528, 3540, 3717, 3920, 4130, 4248, 4410, 4720, 4956, 5040, 5310, 5782, 5880, 6195, 6608, 7056, 7080, 7434, 8260, 8496, 8673, 8820, 9912, 10531, 10620, 11564, 11760, 12390, 14160, 14455, 14868, 16520, 17346, 17640, 18585, 19824, 21062, 21240, 23128, 24780, 26019, 28910, 29736, 31593, 33040, 34692, 35280, 37170, 42124, 42480, 43365, 46256, 49560, 52038, 52655, 57820, 59472, 63186, 69384, 73717, 74340, 84248, 86730, 94779, 99120, 104076, 105310, 115640, 126372, 130095, 138768, 147434, 148680, 157965, 168496, 173460, 189558, 208152, 210620, 221151, 231280, 252744, 260190, 294868, 297360, 315930, 346920, 368585, 379116, 416304, 421240, 442302, 473895, 505488, 516019, 520380, 589736, 621329, 631860, 663453, 693840, 737170, 758232, 842480, 884604, 947790, 1032038, 1040760, 1105755, 1179472, 1242658, 1263720, 1326906, 1474340, 1516464, 1548057, 1769208, 1863987, 1895580, 2064076, 2081520, 2211510, 2485316, 2527440, 2580095, 2653812, 2948680, 3096114, 3106645, 3317265, 3538416, 3727974, 3791160, 4128152, 4349303, 4423020, 4644171, 4970632, 5160190, 5307624, 5591961, 5897360, 6192228, 6213290, 6634530, 7455948, 7582320, 7740285, 8256304, 8698606, 8846040, 9288342, 9319935, 9941264, 10320380, 10615248, 11183922, 12384456, 12426580, 13047909, 13269060, 14911896, 15480570, 17397212, 17692080, 18576684, 18639870, 20640760, 21746515, 22367844, 23220855, 24768912, 24853160, 26095818, 26538120, 27959805, 29823792, 30445121, 30961140, 34794424, 37153368, 37279740, 39143727, 41281520, 43493030, 44735688, 46441710, 49706320, 52191636, 53076240, 55919610, 60890242, 61922280, 65239545, 69588848, 74306736, 74559480, 78287454, 86986060, 89471376, 91335363, 92883420, 104383272, 111839220, 121780484, 123844560, 130479090, 149118960, 152225605, 156574908, 173972120, 182670726, 185766840, 195718635, 208766544, 223678440, 243560968, 260958180, 274006089, 304451210, 313149816, 347944240, 365341452, 371533680, 391437270, 447356880, 456676815, 487121936, 521916360, 548012178, 608902420, 626299632, 730682904, 782874540, 913353630, 1043832720, 1096024356, 1217804840, 1370030445, 1461365808, 1565749080, 1826707260, 2192048712, 2435609680, 2740060890, 3131498160, 3653414520, 4384097424, 5480121780, 7306829040, 10960243560, 21920487120]

約数ペア:

[(1, 21920487120), (2, 10960243560), (3, 7306829040), (4, 5480121780), (5, 4384097424), (6, 3653414520), (7, 3131498160), (8, 2740060890), (9, 2435609680), (10, 2192048712), (12, 1826707260), (14, 1565749080), (15, 1461365808), (16, 1370030445), (18, 1217804840), (20, 1096024356), (21, 1043832720), (24, 913353630), (28, 782874540), (30, 730682904), (35, 626299632), (36, 608902420), (40, 548012178), (42, 521916360), (45, 487121936), (48, 456676815), (49, 447356880), (56, 391437270), (59, 371533680), (60, 365341452), (63, 347944240), (70, 313149816), (72, 304451210), (80, 274006089), (84, 260958180), (90, 243560968), (98, 223678440), (105, 208766544), (112, 195718635), (118, 185766840), (120, 182670726), (126, 173972120), (140, 156574908), (144, 152225605), (147, 149118960), (168, 130479090), (177, 123844560), (180, 121780484), (196, 111839220), (210, 104383272), (236, 92883420), (240, 91335363), (245, 89471376), (252, 86986060), (280, 78287454), (294, 74559480), (295, 74306736), (315, 69588848), (336, 65239545), (354, 61922280), (360, 60890242), (392, 55919610), (413, 53076240), (420, 52191636), (441, 49706320), (472, 46441710), (490, 44735688), (504, 43493030), (531, 41281520), (560, 39143727), (588, 37279740), (590, 37153368), (630, 34794424), (708, 30961140), (720, 30445121), (735, 29823792), (784, 27959805), (826, 26538120), (840, 26095818), (882, 24853160), (885, 24768912), (944, 23220855), (980, 22367844), (1008, 21746515), (1062, 20640760), (1176, 18639870), (1180, 18576684), (1239, 17692080), (1260, 17397212), (1416, 15480570), (1470, 14911896), (1652, 13269060), (1680, 13047909), (1764, 12426580), (1770, 12384456), (1960, 11183922), (2065, 10615248), (2124, 10320380), (2205, 9941264), (2352, 9319935), (2360, 9288342), (2478, 8846040), (2520, 8698606), (2655, 8256304), (2832, 7740285), (2891, 7582320), (2940, 7455948), (3304, 6634530), (3528, 6213290), (3540, 6192228), (3717, 5897360), (3920, 5591961), (4130, 5307624), (4248, 5160190), (4410, 4970632), (4720, 4644171), (4956, 4423020), (5040, 4349303), (5310, 4128152), (5782, 3791160), (5880, 3727974), (6195, 3538416), (6608, 3317265), (7056, 3106645), (7080, 3096114), (7434, 2948680), (8260, 2653812), (8496, 2580095), (8673, 2527440), (8820, 2485316), (9912, 2211510), (10531, 2081520), (10620, 2064076), (11564, 1895580), (11760, 1863987), (12390, 1769208), (14160, 1548057), (14455, 1516464), (14868, 1474340), (16520, 1326906), (17346, 1263720), (17640, 1242658), (18585, 1179472), (19824, 1105755), (21062, 1040760), (21240, 1032038), (23128, 947790), (24780, 884604), (26019, 842480), (28910, 758232), (29736, 737170), (31593, 693840), (33040, 663453), (34692, 631860), (35280, 621329), (37170, 589736), (42124, 520380), (42480, 516019), (43365, 505488), (46256, 473895), (49560, 442302), (52038, 421240), (52655, 416304), (57820, 379116), (59472, 368585), (63186, 346920), (69384, 315930), (73717, 297360), (74340, 294868), (84248, 260190), (86730, 252744), (94779, 231280), (99120, 221151), (104076, 210620), (105310, 208152), (115640, 189558), (126372, 173460), (130095, 168496), (138768, 157965), (147434, 148680)]