1821639680

素因数分解:

$2^{10}\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:229

約数の個数: 264

約数和(自身を含む): 5216951448

約数和(自身を除く): 3395311768

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 53, 56, 64, 70, 80, 98, 106, 112, 128, 137, 140, 160, 196, 212, 224, 245, 256, 265, 274, 280, 320, 371, 392, 424, 448, 490, 512, 530, 548, 560, 640, 685, 742, 784, 848, 896, 959, 980, 1024, 1060, 1096, 1120, 1280, 1370, 1484, 1568, 1696, 1792, 1855, 1918, 1960, 2120, 2192, 2240, 2560, 2597, 2740, 2968, 3136, 3392, 3584, 3710, 3836, 3920, 4240, 4384, 4480, 4795, 5120, 5194, 5480, 5936, 6272, 6713, 6784, 7168, 7261, 7420, 7672, 7840, 8480, 8768, 8960, 9590, 10388, 10960, 11872, 12544, 12985, 13426, 13568, 14522, 14840, 15344, 15680, 16960, 17536, 17920, 19180, 20776, 21920, 23744, 25088, 25970, 26852, 27136, 29044, 29680, 30688, 31360, 33565, 33920, 35072, 35840, 36305, 38360, 41552, 43840, 47488, 50176, 50827, 51940, 53704, 54272, 58088, 59360, 61376, 62720, 67130, 67840, 70144, 72610, 76720, 83104, 87680, 94976, 101654, 103880, 107408, 116176, 118720, 122752, 125440, 134260, 135680, 140288, 145220, 153440, 166208, 175360, 189952, 203308, 207760, 214816, 232352, 237440, 245504, 250880, 254135, 268520, 271360, 290440, 306880, 332416, 350720, 355789, 379904, 406616, 415520, 429632, 464704, 474880, 491008, 508270, 537040, 580880, 613760, 664832, 701440, 711578, 813232, 831040, 859264, 929408, 949760, 982016, 1016540, 1074080, 1161760, 1227520, 1329664, 1423156, 1626464, 1662080, 1718528, 1778945, 1858816, 1899520, 2033080, 2148160, 2323520, 2455040, 2659328, 2846312, 3252928, 3324160, 3437056, 3557890, 3717632, 4066160, 4296320, 4647040, 4910080, 5692624, 6505856, 6648320, 6874112, 7115780, 7435264, 8132320, 8592640, 9294080, 11385248, 13011712, 13296640, 14231560, 16264640, 17185280, 18588160, 22770496, 26023424, 28463120, 32529280, 34370560, 37176320, 45540992, 52046848, 56926240, 65058560, 91081984, 113852480, 130117120, 182163968, 227704960, 260234240, 364327936, 455409920, 910819840, 1821639680]

約数ペア:

[(1, 1821639680), (2, 910819840), (4, 455409920), (5, 364327936), (7, 260234240), (8, 227704960), (10, 182163968), (14, 130117120), (16, 113852480), (20, 91081984), (28, 65058560), (32, 56926240), (35, 52046848), (40, 45540992), (49, 37176320), (53, 34370560), (56, 32529280), (64, 28463120), (70, 26023424), (80, 22770496), (98, 18588160), (106, 17185280), (112, 16264640), (128, 14231560), (137, 13296640), (140, 13011712), (160, 11385248), (196, 9294080), (212, 8592640), (224, 8132320), (245, 7435264), (256, 7115780), (265, 6874112), (274, 6648320), (280, 6505856), (320, 5692624), (371, 4910080), (392, 4647040), (424, 4296320), (448, 4066160), (490, 3717632), (512, 3557890), (530, 3437056), (548, 3324160), (560, 3252928), (640, 2846312), (685, 2659328), (742, 2455040), (784, 2323520), (848, 2148160), (896, 2033080), (959, 1899520), (980, 1858816), (1024, 1778945), (1060, 1718528), (1096, 1662080), (1120, 1626464), (1280, 1423156), (1370, 1329664), (1484, 1227520), (1568, 1161760), (1696, 1074080), (1792, 1016540), (1855, 982016), (1918, 949760), (1960, 929408), (2120, 859264), (2192, 831040), (2240, 813232), (2560, 711578), (2597, 701440), (2740, 664832), (2968, 613760), (3136, 580880), (3392, 537040), (3584, 508270), (3710, 491008), (3836, 474880), (3920, 464704), (4240, 429632), (4384, 415520), (4480, 406616), (4795, 379904), (5120, 355789), (5194, 350720), (5480, 332416), (5936, 306880), (6272, 290440), (6713, 271360), (6784, 268520), (7168, 254135), (7261, 250880), (7420, 245504), (7672, 237440), (7840, 232352), (8480, 214816), (8768, 207760), (8960, 203308), (9590, 189952), (10388, 175360), (10960, 166208), (11872, 153440), (12544, 145220), (12985, 140288), (13426, 135680), (13568, 134260), (14522, 125440), (14840, 122752), (15344, 118720), (15680, 116176), (16960, 107408), (17536, 103880), (17920, 101654), (19180, 94976), (20776, 87680), (21920, 83104), (23744, 76720), (25088, 72610), (25970, 70144), (26852, 67840), (27136, 67130), (29044, 62720), (29680, 61376), (30688, 59360), (31360, 58088), (33565, 54272), (33920, 53704), (35072, 51940), (35840, 50827), (36305, 50176), (38360, 47488), (41552, 43840)]