20495587840

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{907}}^1$

素因数の和:1047

約数の個数: 320

約数和(自身を含む): 61172584704

約数和(自身を除く): 40676996864

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 97, 104, 112, 128, 130, 140, 160, 182, 194, 208, 224, 256, 260, 280, 320, 364, 388, 416, 448, 455, 485, 512, 520, 560, 640, 679, 728, 776, 832, 896, 907, 910, 970, 1040, 1120, 1261, 1280, 1358, 1456, 1552, 1664, 1792, 1814, 1820, 1940, 2080, 2240, 2522, 2560, 2716, 2912, 3104, 3328, 3395, 3584, 3628, 3640, 3880, 4160, 4480, 4535, 5044, 5432, 5824, 6208, 6305, 6349, 6656, 6790, 7256, 7280, 7760, 8320, 8827, 8960, 9070, 10088, 10864, 11648, 11791, 12416, 12610, 12698, 13580, 14512, 14560, 15520, 16640, 17654, 17920, 18140, 20176, 21728, 23296, 23582, 24832, 25220, 25396, 27160, 29024, 29120, 31040, 31745, 33280, 35308, 36280, 40352, 43456, 44135, 46592, 47164, 49664, 50440, 50792, 54320, 58048, 58240, 58955, 62080, 63490, 70616, 72560, 80704, 82537, 86912, 87979, 88270, 94328, 100880, 101584, 108640, 116096, 116480, 117910, 124160, 126980, 141232, 145120, 161408, 165074, 173824, 175958, 176540, 188656, 201760, 203168, 217280, 232192, 232960, 235820, 248320, 253960, 282464, 290240, 322816, 330148, 347648, 351916, 353080, 377312, 403520, 406336, 412685, 434560, 439895, 464384, 471640, 507920, 564928, 580480, 615853, 645632, 660296, 703832, 706160, 754624, 807040, 812672, 825370, 869120, 879790, 943280, 1015840, 1129856, 1143727, 1160960, 1231706, 1320592, 1407664, 1412320, 1509248, 1614080, 1625344, 1650740, 1738240, 1759580, 1886560, 2031680, 2259712, 2287454, 2321920, 2463412, 2641184, 2815328, 2824640, 3018496, 3079265, 3228160, 3250688, 3301480, 3519160, 3773120, 4063360, 4519424, 4574908, 4926824, 5282368, 5630656, 5649280, 5718635, 6036992, 6158530, 6602960, 7038320, 7546240, 8006089, 8126720, 9149816, 9853648, 10564736, 11261312, 11298560, 11437270, 12317060, 13205920, 14076640, 15092480, 16012178, 16253440, 18299632, 19707296, 21129472, 22522624, 22597120, 22874540, 24634120, 26411840, 28153280, 30184960, 32024356, 36599264, 39414592, 40030445, 42258944, 45045248, 45749080, 49268240, 52823680, 56306560, 64048712, 73198528, 78829184, 80060890, 91498160, 98536480, 105647360, 112613120, 128097424, 146397056, 157658368, 160121780, 182996320, 197072960, 211294720, 225226240, 256194848, 292794112, 315316736, 320243560, 365992640, 394145920, 512389696, 585588224, 640487120, 731985280, 788291840, 1024779392, 1280974240, 1463970560, 1576583680, 2049558784, 2561948480, 2927941120, 4099117568, 5123896960, 10247793920, 20495587840]

約数ペア:

[(1, 20495587840), (2, 10247793920), (4, 5123896960), (5, 4099117568), (7, 2927941120), (8, 2561948480), (10, 2049558784), (13, 1576583680), (14, 1463970560), (16, 1280974240), (20, 1024779392), (26, 788291840), (28, 731985280), (32, 640487120), (35, 585588224), (40, 512389696), (52, 394145920), (56, 365992640), (64, 320243560), (65, 315316736), (70, 292794112), (80, 256194848), (91, 225226240), (97, 211294720), (104, 197072960), (112, 182996320), (128, 160121780), (130, 157658368), (140, 146397056), (160, 128097424), (182, 112613120), (194, 105647360), (208, 98536480), (224, 91498160), (256, 80060890), (260, 78829184), (280, 73198528), (320, 64048712), (364, 56306560), (388, 52823680), (416, 49268240), (448, 45749080), (455, 45045248), (485, 42258944), (512, 40030445), (520, 39414592), (560, 36599264), (640, 32024356), (679, 30184960), (728, 28153280), (776, 26411840), (832, 24634120), (896, 22874540), (907, 22597120), (910, 22522624), (970, 21129472), (1040, 19707296), (1120, 18299632), (1261, 16253440), (1280, 16012178), (1358, 15092480), (1456, 14076640), (1552, 13205920), (1664, 12317060), (1792, 11437270), (1814, 11298560), (1820, 11261312), (1940, 10564736), (2080, 9853648), (2240, 9149816), (2522, 8126720), (2560, 8006089), (2716, 7546240), (2912, 7038320), (3104, 6602960), (3328, 6158530), (3395, 6036992), (3584, 5718635), (3628, 5649280), (3640, 5630656), (3880, 5282368), (4160, 4926824), (4480, 4574908), (4535, 4519424), (5044, 4063360), (5432, 3773120), (5824, 3519160), (6208, 3301480), (6305, 3250688), (6349, 3228160), (6656, 3079265), (6790, 3018496), (7256, 2824640), (7280, 2815328), (7760, 2641184), (8320, 2463412), (8827, 2321920), (8960, 2287454), (9070, 2259712), (10088, 2031680), (10864, 1886560), (11648, 1759580), (11791, 1738240), (12416, 1650740), (12610, 1625344), (12698, 1614080), (13580, 1509248), (14512, 1412320), (14560, 1407664), (15520, 1320592), (16640, 1231706), (17654, 1160960), (17920, 1143727), (18140, 1129856), (20176, 1015840), (21728, 943280), (23296, 879790), (23582, 869120), (24832, 825370), (25220, 812672), (25396, 807040), (27160, 754624), (29024, 706160), (29120, 703832), (31040, 660296), (31745, 645632), (33280, 615853), (35308, 580480), (36280, 564928), (40352, 507920), (43456, 471640), (44135, 464384), (46592, 439895), (47164, 434560), (49664, 412685), (50440, 406336), (50792, 403520), (54320, 377312), (58048, 353080), (58240, 351916), (58955, 347648), (62080, 330148), (63490, 322816), (70616, 290240), (72560, 282464), (80704, 253960), (82537, 248320), (86912, 235820), (87979, 232960), (88270, 232192), (94328, 217280), (100880, 203168), (101584, 201760), (108640, 188656), (116096, 176540), (116480, 175958), (117910, 173824), (124160, 165074), (126980, 161408), (141232, 145120)]