257513760

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{433}}^1$

素因数の和:520

約数の個数: 288

約数和(自身を含む): 1023684480

約数和(自身を除く): 766170720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 59, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 118, 120, 126, 140, 144, 160, 168, 177, 180, 210, 224, 236, 240, 252, 280, 288, 295, 315, 336, 354, 360, 413, 420, 433, 472, 480, 504, 531, 560, 590, 630, 672, 708, 720, 826, 840, 866, 885, 944, 1008, 1062, 1120, 1180, 1239, 1260, 1299, 1416, 1440, 1652, 1680, 1732, 1770, 1888, 2016, 2065, 2124, 2165, 2360, 2478, 2520, 2598, 2655, 2832, 3031, 3304, 3360, 3464, 3540, 3717, 3897, 4130, 4248, 4330, 4720, 4956, 5040, 5196, 5310, 5664, 6062, 6195, 6495, 6608, 6928, 7080, 7434, 7794, 8260, 8496, 8660, 9093, 9440, 9912, 10080, 10392, 10620, 12124, 12390, 12990, 13216, 13856, 14160, 14868, 15155, 15588, 16520, 16992, 17320, 18186, 18585, 19485, 19824, 20784, 21240, 24248, 24780, 25547, 25980, 27279, 28320, 29736, 30310, 31176, 33040, 34640, 36372, 37170, 38970, 39648, 41568, 42480, 45465, 48496, 49560, 51094, 51960, 54558, 59472, 60620, 62352, 66080, 69280, 72744, 74340, 76641, 77940, 84960, 90930, 96992, 99120, 102188, 103920, 109116, 118944, 121240, 124704, 127735, 136395, 145488, 148680, 153282, 155880, 178829, 181860, 198240, 204376, 207840, 218232, 229923, 242480, 255470, 272790, 290976, 297360, 306564, 311760, 357658, 363720, 383205, 408752, 436464, 459846, 484960, 510940, 536487, 545580, 594720, 613128, 623520, 715316, 727440, 766410, 817504, 872928, 894145, 919692, 1021880, 1072974, 1091160, 1149615, 1226256, 1430632, 1454880, 1532820, 1609461, 1788290, 1839384, 2043760, 2145948, 2182320, 2299230, 2452512, 2682435, 2861264, 3065640, 3218922, 3576580, 3678768, 4087520, 4291896, 4364640, 4598460, 5364870, 5722528, 6131280, 6437844, 7153160, 7357536, 8047305, 8583792, 9196920, 10729740, 12262560, 12875688, 14306320, 16094610, 17167584, 18393840, 21459480, 25751376, 28612640, 32189220, 36787680, 42918960, 51502752, 64378440, 85837920, 128756880, 257513760]

約数ペア:

[(1, 257513760), (2, 128756880), (3, 85837920), (4, 64378440), (5, 51502752), (6, 42918960), (7, 36787680), (8, 32189220), (9, 28612640), (10, 25751376), (12, 21459480), (14, 18393840), (15, 17167584), (16, 16094610), (18, 14306320), (20, 12875688), (21, 12262560), (24, 10729740), (28, 9196920), (30, 8583792), (32, 8047305), (35, 7357536), (36, 7153160), (40, 6437844), (42, 6131280), (45, 5722528), (48, 5364870), (56, 4598460), (59, 4364640), (60, 4291896), (63, 4087520), (70, 3678768), (72, 3576580), (80, 3218922), (84, 3065640), (90, 2861264), (96, 2682435), (105, 2452512), (112, 2299230), (118, 2182320), (120, 2145948), (126, 2043760), (140, 1839384), (144, 1788290), (160, 1609461), (168, 1532820), (177, 1454880), (180, 1430632), (210, 1226256), (224, 1149615), (236, 1091160), (240, 1072974), (252, 1021880), (280, 919692), (288, 894145), (295, 872928), (315, 817504), (336, 766410), (354, 727440), (360, 715316), (413, 623520), (420, 613128), (433, 594720), (472, 545580), (480, 536487), (504, 510940), (531, 484960), (560, 459846), (590, 436464), (630, 408752), (672, 383205), (708, 363720), (720, 357658), (826, 311760), (840, 306564), (866, 297360), (885, 290976), (944, 272790), (1008, 255470), (1062, 242480), (1120, 229923), (1180, 218232), (1239, 207840), (1260, 204376), (1299, 198240), (1416, 181860), (1440, 178829), (1652, 155880), (1680, 153282), (1732, 148680), (1770, 145488), (1888, 136395), (2016, 127735), (2065, 124704), (2124, 121240), (2165, 118944), (2360, 109116), (2478, 103920), (2520, 102188), (2598, 99120), (2655, 96992), (2832, 90930), (3031, 84960), (3304, 77940), (3360, 76641), (3464, 74340), (3540, 72744), (3717, 69280), (3897, 66080), (4130, 62352), (4248, 60620), (4330, 59472), (4720, 54558), (4956, 51960), (5040, 51094), (5196, 49560), (5310, 48496), (5664, 45465), (6062, 42480), (6195, 41568), (6495, 39648), (6608, 38970), (6928, 37170), (7080, 36372), (7434, 34640), (7794, 33040), (8260, 31176), (8496, 30310), (8660, 29736), (9093, 28320), (9440, 27279), (9912, 25980), (10080, 25547), (10392, 24780), (10620, 24248), (12124, 21240), (12390, 20784), (12990, 19824), (13216, 19485), (13856, 18585), (14160, 18186), (14868, 17320), (15155, 16992), (15588, 16520)]