21386784720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:363

約数の個数: 640

約数和(自身を含む): 83308953600

約数和(自身を除く): 61922168880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 48, 51, 53, 56, 60, 68, 70, 71, 80, 84, 85, 102, 105, 106, 112, 119, 120, 136, 140, 142, 159, 168, 170, 199, 204, 210, 212, 213, 238, 240, 255, 265, 272, 280, 284, 318, 336, 340, 355, 357, 371, 398, 408, 420, 424, 426, 476, 497, 510, 530, 560, 568, 595, 597, 636, 680, 710, 714, 742, 795, 796, 816, 840, 848, 852, 901, 952, 994, 995, 1020, 1060, 1065, 1113, 1136, 1190, 1194, 1207, 1272, 1360, 1393, 1420, 1428, 1484, 1491, 1590, 1592, 1680, 1704, 1785, 1802, 1855, 1904, 1988, 1990, 2040, 2120, 2130, 2226, 2380, 2388, 2414, 2485, 2544, 2703, 2786, 2840, 2856, 2968, 2982, 2985, 3180, 3184, 3383, 3408, 3570, 3604, 3621, 3710, 3763, 3976, 3980, 4080, 4179, 4240, 4260, 4452, 4505, 4760, 4776, 4828, 4970, 5406, 5565, 5572, 5680, 5712, 5936, 5964, 5970, 6035, 6307, 6360, 6766, 6965, 7140, 7208, 7242, 7420, 7455, 7526, 7952, 7960, 8358, 8449, 8520, 8904, 9010, 9520, 9552, 9656, 9940, 10149, 10547, 10812, 11130, 11144, 11289, 11928, 11940, 12070, 12614, 12720, 13515, 13532, 13930, 14129, 14280, 14416, 14484, 14840, 14910, 15052, 15920, 16716, 16898, 16915, 17040, 17808, 18020, 18105, 18815, 18921, 19312, 19880, 20298, 20895, 21094, 21624, 22260, 22288, 22578, 23681, 23856, 23880, 24140, 25228, 25347, 26341, 27030, 27064, 27860, 28258, 28560, 28968, 29680, 29820, 30104, 31535, 31641, 33432, 33796, 33830, 36040, 36210, 37630, 37842, 39760, 40596, 41790, 42188, 42245, 42387, 43248, 44520, 45156, 47362, 47760, 48280, 50456, 50694, 50745, 52682, 52735, 54060, 54128, 55720, 56445, 56516, 57936, 59640, 60208, 63070, 63282, 63971, 66864, 67592, 67660, 70645, 71043, 72080, 72420, 73829, 75260, 75684, 79023, 81192, 83580, 84376, 84490, 84774, 89040, 90312, 94605, 94724, 96560, 98903, 100912, 101388, 101490, 105364, 105470, 108120, 111440, 112890, 113032, 118405, 119280, 126140, 126564, 126735, 127942, 131705, 135184, 135320, 141290, 142086, 144840, 147658, 150520, 151368, 158046, 158205, 162384, 167160, 168752, 168980, 169548, 179299, 180624, 189210, 189448, 191913, 197806, 202776, 202980, 210728, 210940, 211935, 216240, 221487, 225780, 226064, 236810, 240193, 252280, 253128, 253470, 255884, 263410, 270640, 282580, 284172, 289680, 295316, 296709, 301040, 302736, 316092, 316410, 319855, 334320, 337960, 339096, 355215, 358598, 369145, 378420, 378896, 383826, 395115, 395612, 405552, 405960, 421456, 421880, 423870, 442974, 447797, 451560, 473620, 480386, 494515, 504560, 506256, 506940, 511768, 526820, 537897, 565160, 568344, 590632, 593418, 632184, 632820, 639710, 675920, 678192, 710430, 717196, 720579, 738290, 748837, 756840, 767652, 790230, 791224, 811920, 843760, 847740, 885948, 895594, 896495, 903120, 947240, 959565, 960772, 989030, 1013880, 1023536, 1053640, 1075794, 1107435, 1130320, 1136688, 1181264, 1186836, 1200965, 1255093, 1264368, 1265640, 1279420, 1343391, 1420860, 1434392, 1441158, 1476580, 1483545, 1497674, 1513680, 1535304, 1580460, 1582448, 1681351, 1695480, 1771896, 1791188, 1792990, 1894480, 1919130, 1921544, 1978060, 2027760, 2107280, 2151588, 2214870, 2238985, 2246511, 2373672, 2401930, 2510186, 2531280, 2558840, 2686782, 2689485, 2841720, 2868784, 2882316, 2953160, 2967090, 2995348, 3070608, 3160920, 3362702, 3390960, 3543792, 3582376, 3585980, 3602895, 3744185, 3765279, 3838260, 3843088, 3956120, 4303176, 4429740, 4477970, 4493022, 4747344, 4803860, 5020372, 5044053, 5117680, 5241859, 5373564, 5378970, 5683440, 5764632, 5906320, 5934180, 5990696, 6275465, 6321840, 6716955, 6725404, 7164752, 7171960, 7205790, 7488370, 7530558, 7676520, 7912240, 8406755, 8606352, 8859480, 8955940, 8986044, 9607720, 10040744, 10088106, 10483718, 10747128, 10757940, 11232555, 11529264, 11868360, 11981392, 12550930, 12730229, 13433910, 13450808, 14343920, 14411580, 14976740, 15061116, 15353040, 15725577, 16813510, 17718960, 17911880, 17972088, 18826395, 19215440, 20081488, 20176212, 20967436, 21494256, 21515880, 22465110, 23736720, 25101860, 25220265, 25460458, 26209295, 26867820, 26901616, 28823160, 29953480, 30122232, 31451154, 33627020, 35823760, 35944176, 37652790, 38190687, 40352424, 41934872, 43031760, 44930220, 50203720, 50440530, 50920916, 52418590, 53735640, 57646320, 59906960, 60244464, 62902308, 63651145, 67254040, 75305580, 76381374, 78627885, 80704848, 83869744, 89111603, 89860440, 100407440, 100881060, 101841832, 104837180, 107471280, 125804616, 127302290, 134508080, 150611160, 152762748, 157255770, 178223206, 179720880, 190953435, 201762120, 203683664, 209674360, 251609232, 254604580, 267334809, 301222320, 305525496, 314511540, 356446412, 381906870, 403524240, 419348720, 445558015, 509209160, 534669618, 611050992, 629023080, 712892824, 763813740, 891116030, 1018418320, 1069339236, 1258046160, 1336674045, 1425785648, 1527627480, 1782232060, 2138678472, 2673348090, 3055254960, 3564464120, 4277356944, 5346696180, 7128928240, 10693392360, 21386784720]

約数ペア:

[(1, 21386784720), (2, 10693392360), (3, 7128928240), (4, 5346696180), (5, 4277356944), (6, 3564464120), (7, 3055254960), (8, 2673348090), (10, 2138678472), (12, 1782232060), (14, 1527627480), (15, 1425785648), (16, 1336674045), (17, 1258046160), (20, 1069339236), (21, 1018418320), (24, 891116030), (28, 763813740), (30, 712892824), (34, 629023080), (35, 611050992), (40, 534669618), (42, 509209160), (48, 445558015), (51, 419348720), (53, 403524240), (56, 381906870), (60, 356446412), (68, 314511540), (70, 305525496), (71, 301222320), (80, 267334809), (84, 254604580), (85, 251609232), (102, 209674360), (105, 203683664), (106, 201762120), (112, 190953435), (119, 179720880), (120, 178223206), (136, 157255770), (140, 152762748), (142, 150611160), (159, 134508080), (168, 127302290), (170, 125804616), (199, 107471280), (204, 104837180), (210, 101841832), (212, 100881060), (213, 100407440), (238, 89860440), (240, 89111603), (255, 83869744), (265, 80704848), (272, 78627885), (280, 76381374), (284, 75305580), (318, 67254040), (336, 63651145), (340, 62902308), (355, 60244464), (357, 59906960), (371, 57646320), (398, 53735640), (408, 52418590), (420, 50920916), (424, 50440530), (426, 50203720), (476, 44930220), (497, 43031760), (510, 41934872), (530, 40352424), (560, 38190687), (568, 37652790), (595, 35944176), (597, 35823760), (636, 33627020), (680, 31451154), (710, 30122232), (714, 29953480), (742, 28823160), (795, 26901616), (796, 26867820), (816, 26209295), (840, 25460458), (848, 25220265), (852, 25101860), (901, 23736720), (952, 22465110), (994, 21515880), (995, 21494256), (1020, 20967436), (1060, 20176212), (1065, 20081488), (1113, 19215440), (1136, 18826395), (1190, 17972088), (1194, 17911880), (1207, 17718960), (1272, 16813510), (1360, 15725577), (1393, 15353040), (1420, 15061116), (1428, 14976740), (1484, 14411580), (1491, 14343920), (1590, 13450808), (1592, 13433910), (1680, 12730229), (1704, 12550930), (1785, 11981392), (1802, 11868360), (1855, 11529264), (1904, 11232555), (1988, 10757940), (1990, 10747128), (2040, 10483718), (2120, 10088106), (2130, 10040744), (2226, 9607720), (2380, 8986044), (2388, 8955940), (2414, 8859480), (2485, 8606352), (2544, 8406755), (2703, 7912240), (2786, 7676520), (2840, 7530558), (2856, 7488370), (2968, 7205790), (2982, 7171960), (2985, 7164752), (3180, 6725404), (3184, 6716955), (3383, 6321840), (3408, 6275465), (3570, 5990696), (3604, 5934180), (3621, 5906320), (3710, 5764632), (3763, 5683440), (3976, 5378970), (3980, 5373564), (4080, 5241859), (4179, 5117680), (4240, 5044053), (4260, 5020372), (4452, 4803860), (4505, 4747344), (4760, 4493022), (4776, 4477970), (4828, 4429740), (4970, 4303176), (5406, 3956120), (5565, 3843088), (5572, 3838260), (5680, 3765279), (5712, 3744185), (5936, 3602895), (5964, 3585980), (5970, 3582376), (6035, 3543792), (6307, 3390960), (6360, 3362702), (6766, 3160920), (6965, 3070608), (7140, 2995348), (7208, 2967090), (7242, 2953160), (7420, 2882316), (7455, 2868784), (7526, 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(25347, 843760), (26341, 811920), (27030, 791224), (27064, 790230), (27860, 767652), (28258, 756840), (28560, 748837), (28968, 738290), (29680, 720579), (29820, 717196), (30104, 710430), (31535, 678192), (31641, 675920), (33432, 639710), (33796, 632820), (33830, 632184), (36040, 593418), (36210, 590632), (37630, 568344), (37842, 565160), (39760, 537897), (40596, 526820), (41790, 511768), (42188, 506940), (42245, 506256), (42387, 504560), (43248, 494515), (44520, 480386), (45156, 473620), (47362, 451560), (47760, 447797), (48280, 442974), (50456, 423870), (50694, 421880), (50745, 421456), (52682, 405960), (52735, 405552), (54060, 395612), (54128, 395115), (55720, 383826), (56445, 378896), (56516, 378420), (57936, 369145), (59640, 358598), (60208, 355215), (63070, 339096), (63282, 337960), (63971, 334320), (66864, 319855), (67592, 316410), (67660, 316092), (70645, 302736), (71043, 301040), (72080, 296709), (72420, 295316), (73829, 289680), (75260, 284172), (75684, 282580), (79023, 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