20494881120

素因数分解:

$2^5\times 3^1\times 5^1\times 7^3\times {\mathrm{281}}^1\times {\mathrm{443}}^1$

素因数の和:763

約数の個数: 384

約数和(自身を含む): 75725798400

約数和(自身を除く): 55230917280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 196, 210, 224, 240, 245, 280, 281, 294, 336, 343, 392, 420, 443, 480, 490, 560, 562, 588, 672, 686, 735, 784, 840, 843, 886, 980, 1029, 1120, 1124, 1176, 1329, 1372, 1405, 1470, 1568, 1680, 1686, 1715, 1772, 1960, 1967, 2058, 2215, 2248, 2352, 2658, 2744, 2810, 2940, 3101, 3360, 3372, 3430, 3544, 3920, 3934, 4116, 4215, 4430, 4496, 4704, 5145, 5316, 5488, 5620, 5880, 5901, 6202, 6645, 6744, 6860, 7088, 7840, 7868, 8232, 8430, 8860, 8992, 9303, 9835, 10290, 10632, 10976, 11240, 11760, 11802, 12404, 13290, 13488, 13720, 13769, 14176, 15505, 15736, 16464, 16860, 17720, 18606, 19670, 20580, 21264, 21707, 22480, 23520, 23604, 24808, 26580, 26976, 27440, 27538, 29505, 31010, 31472, 32928, 33720, 35440, 37212, 39340, 41160, 41307, 42528, 43414, 44960, 46515, 47208, 49616, 53160, 54880, 55076, 59010, 62020, 62944, 65121, 67440, 68845, 70880, 74424, 78680, 82320, 82614, 86828, 93030, 94416, 96383, 99232, 106320, 108535, 110152, 118020, 124040, 124483, 130242, 134880, 137690, 148848, 151949, 157360, 164640, 165228, 173656, 186060, 188832, 192766, 206535, 212640, 217070, 220304, 236040, 248080, 248966, 260484, 275380, 289149, 297696, 303898, 314720, 325605, 330456, 347312, 372120, 373449, 385532, 413070, 434140, 440608, 455847, 472080, 481915, 496160, 497932, 520968, 550760, 578298, 607796, 622415, 651210, 660912, 694624, 744240, 746898, 759745, 771064, 826140, 868280, 871381, 911694, 944160, 963830, 995864, 1041936, 1101520, 1156596, 1215592, 1244830, 1302420, 1321824, 1445745, 1488480, 1493796, 1519490, 1542128, 1652280, 1736560, 1742762, 1823388, 1867245, 1927660, 1991728, 2083872, 2203040, 2279235, 2313192, 2431184, 2489660, 2604840, 2614143, 2891490, 2987592, 3038980, 3084256, 3304560, 3473120, 3485524, 3646776, 3734490, 3855320, 3983456, 4356905, 4558470, 4626384, 4862368, 4979320, 5209680, 5228286, 5782980, 5975184, 6077960, 6099667, 6609120, 6971048, 7293552, 7468980, 7710640, 8713810, 9116940, 9252768, 9958640, 10419360, 10456572, 11565960, 11950368, 12155920, 12199334, 13070715, 13942096, 14587104, 14937960, 15421280, 17427620, 18233880, 18299001, 19917280, 20913144, 23131920, 24311840, 24398668, 26141430, 27884192, 29875920, 30498335, 34855240, 36467760, 36598002, 41826288, 42697669, 46263840, 48797336, 52282860, 59751840, 60996670, 69710480, 72935520, 73196004, 83652576, 85395338, 91495005, 97594672, 104565720, 121993340, 128093007, 139420960, 146392008, 170790676, 182990010, 195189344, 209131440, 213488345, 243986680, 256186014, 292784016, 341581352, 365980020, 418262880, 426976690, 487973360, 512372028, 585568032, 640465035, 683162704, 731960040, 853953380, 975946720, 1024744056, 1280930070, 1366325408, 1463920080, 1707906760, 2049488112, 2561860140, 2927840160, 3415813520, 4098976224, 5123720280, 6831627040, 10247440560, 20494881120]

約数ペア:

[(1, 20494881120), (2, 10247440560), (3, 6831627040), (4, 5123720280), (5, 4098976224), (6, 3415813520), (7, 2927840160), (8, 2561860140), (10, 2049488112), (12, 1707906760), (14, 1463920080), (15, 1366325408), (16, 1280930070), (20, 1024744056), (21, 975946720), (24, 853953380), (28, 731960040), (30, 683162704), (32, 640465035), (35, 585568032), (40, 512372028), (42, 487973360), (48, 426976690), (49, 418262880), (56, 365980020), (60, 341581352), (70, 292784016), (80, 256186014), (84, 243986680), (96, 213488345), (98, 209131440), (105, 195189344), (112, 182990010), (120, 170790676), (140, 146392008), (147, 139420960), (160, 128093007), (168, 121993340), (196, 104565720), (210, 97594672), (224, 91495005), (240, 85395338), (245, 83652576), (280, 73196004), (281, 72935520), (294, 69710480), (336, 60996670), (343, 59751840), (392, 52282860), (420, 48797336), (443, 46263840), (480, 42697669), (490, 41826288), (560, 36598002), (562, 36467760), (588, 34855240), (672, 30498335), (686, 29875920), (735, 27884192), (784, 26141430), (840, 24398668), (843, 24311840), (886, 23131920), (980, 20913144), (1029, 19917280), (1120, 18299001), (1124, 18233880), (1176, 17427620), (1329, 15421280), (1372, 14937960), (1405, 14587104), (1470, 13942096), (1568, 13070715), (1680, 12199334), (1686, 12155920), (1715, 11950368), (1772, 11565960), (1960, 10456572), (1967, 10419360), (2058, 9958640), (2215, 9252768), (2248, 9116940), (2352, 8713810), (2658, 7710640), (2744, 7468980), (2810, 7293552), (2940, 6971048), (3101, 6609120), (3360, 6099667), (3372, 6077960), (3430, 5975184), (3544, 5782980), (3920, 5228286), (3934, 5209680), (4116, 4979320), (4215, 4862368), (4430, 4626384), (4496, 4558470), (4704, 4356905), (5145, 3983456), (5316, 3855320), (5488, 3734490), (5620, 3646776), (5880, 3485524), (5901, 3473120), (6202, 3304560), (6645, 3084256), (6744, 3038980), (6860, 2987592), (7088, 2891490), (7840, 2614143), (7868, 2604840), (8232, 2489660), (8430, 2431184), (8860, 2313192), (8992, 2279235), (9303, 2203040), (9835, 2083872), (10290, 1991728), (10632, 1927660), (10976, 1867245), (11240, 1823388), (11760, 1742762), (11802, 1736560), (12404, 1652280), (13290, 1542128), (13488, 1519490), (13720, 1493796), (13769, 1488480), (14176, 1445745), (15505, 1321824), (15736, 1302420), (16464, 1244830), (16860, 1215592), (17720, 1156596), (18606, 1101520), (19670, 1041936), (20580, 995864), (21264, 963830), (21707, 944160), (22480, 911694), (23520, 871381), (23604, 868280), (24808, 826140), (26580, 771064), (26976, 759745), (27440, 746898), (27538, 744240), (29505, 694624), (31010, 660912), (31472, 651210), (32928, 622415), (33720, 607796), (35440, 578298), (37212, 550760), (39340, 520968), (41160, 497932), (41307, 496160), (42528, 481915), (43414, 472080), (44960, 455847), (46515, 440608), (47208, 434140), (49616, 413070), (53160, 385532), (54880, 373449), (55076, 372120), (59010, 347312), (62020, 330456), (62944, 325605), (65121, 314720), (67440, 303898), (68845, 297696), (70880, 289149), (74424, 275380), (78680, 260484), (82320, 248966), (82614, 248080), (86828, 236040), (93030, 220304), (94416, 217070), (96383, 212640), (99232, 206535), (106320, 192766), (108535, 188832), (110152, 186060), (118020, 173656), (124040, 165228), (124483, 164640), (130242, 157360), (134880, 151949), (137690, 148848)]