19988251920

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{757}}^1$

素因数の和:840

約数の個数: 720

約数和(自身を含む): 85865075712

約数和(自身を除く): 65876823792

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 24, 26, 28, 30, 31, 35, 36, 39, 40, 42, 45, 48, 52, 56, 60, 62, 63, 65, 70, 72, 78, 80, 84, 90, 91, 93, 104, 105, 112, 117, 120, 124, 126, 130, 140, 144, 155, 156, 168, 169, 180, 182, 186, 195, 208, 210, 217, 234, 240, 248, 252, 260, 273, 279, 280, 310, 312, 315, 336, 338, 360, 364, 372, 390, 403, 420, 434, 455, 465, 468, 496, 504, 507, 520, 546, 558, 560, 585, 620, 624, 630, 651, 676, 720, 728, 744, 757, 780, 806, 819, 840, 845, 868, 910, 930, 936, 1008, 1014, 1040, 1085, 1092, 1116, 1170, 1183, 1209, 1240, 1260, 1302, 1352, 1365, 1395, 1456, 1488, 1514, 1521, 1560, 1612, 1638, 1680, 1690, 1736, 1820, 1860, 1872, 1953, 2015, 2028, 2170, 2184, 2232, 2271, 2340, 2366, 2418, 2480, 2520, 2535, 2604, 2704, 2730, 2790, 2821, 3028, 3042, 3120, 3224, 3255, 3276, 3380, 3472, 3549, 3627, 3640, 3720, 3785, 3906, 4030, 4056, 4095, 4340, 4368, 4464, 4542, 4680, 4732, 4836, 5040, 5070, 5208, 5239, 5299, 5460, 5580, 5642, 5915, 6045, 6056, 6084, 6448, 6510, 6552, 6760, 6813, 7098, 7254, 7280, 7440, 7570, 7605, 7812, 8060, 8112, 8190, 8463, 8680, 9084, 9360, 9464, 9672, 9765, 9841, 10140, 10416, 10478, 10598, 10647, 10920, 11160, 11284, 11355, 11830, 12090, 12112, 12168, 13020, 13104, 13520, 13626, 14105, 14196, 14508, 15140, 15210, 15624, 15717, 15897, 16120, 16380, 16926, 17360, 17745, 18135, 18168, 18928, 19344, 19530, 19682, 20280, 20956, 21196, 21294, 21840, 22320, 22568, 22710, 23467, 23660, 24180, 24336, 25389, 26040, 26195, 26495, 27252, 28210, 28392, 29016, 29523, 30280, 30420, 31248, 31434, 31794, 32240, 32760, 33852, 34065, 35490, 36270, 36336, 36673, 39060, 39364, 40560, 41912, 42315, 42392, 42588, 45136, 45420, 46934, 47151, 47320, 47691, 48360, 49205, 50778, 52080, 52390, 52990, 53235, 54504, 56420, 56784, 58032, 59046, 60560, 60840, 62868, 63588, 65520, 67704, 68130, 68887, 70401, 70980, 72540, 73346, 78120, 78585, 78728, 79485, 83824, 84630, 84784, 85176, 88569, 90840, 93868, 94302, 94640, 95382, 96720, 98410, 101556, 104780, 105980, 106470, 109008, 110019, 112840, 117335, 118092, 121680, 125736, 126945, 127176, 127933, 135408, 136260, 137774, 140802, 141960, 145080, 146692, 147615, 156240, 157170, 157456, 158970, 164269, 169260, 170352, 177138, 181680, 183365, 187736, 188604, 190764, 196820, 203112, 206661, 209560, 211203, 211960, 212940, 220038, 225680, 234670, 235755, 236184, 238455, 251472, 253890, 254352, 255866, 272520, 275548, 281604, 283920, 290160, 293384, 295230, 305071, 314340, 317940, 328538, 330057, 338520, 344435, 352005, 354276, 366730, 375472, 377208, 381528, 383799, 393640, 406224, 413322, 419120, 422406, 423920, 425880, 440076, 442845, 469340, 471510, 472368, 476910, 492807, 507780, 511732, 545040, 550095, 551096, 563208, 586768, 590460, 610142, 619983, 628680, 635880, 639665, 657076, 660114, 677040, 688870, 704010, 708552, 733460, 754416, 763056, 767598, 787280, 821345, 826644, 844812, 851760, 880152, 885690, 895531, 915213, 938680, 943020, 953820, 985614, 1015560, 1023464, 1033305, 1056015, 1100190, 1102192, 1126416, 1151397, 1180920, 1220284, 1239966, 1257360, 1271760, 1279330, 1314152, 1320228, 1377740, 1408020, 1417104, 1466920, 1478421, 1525355, 1535196, 1642690, 1650285, 1653288, 1689624, 1760304, 1771380, 1791062, 1830426, 1877360, 1886040, 1907640, 1918995, 1971228, 2031120, 2046928, 2066610, 2112030, 2135497, 2200380, 2302794, 2361840, 2440568, 2464035, 2479932, 2558660, 2628304, 2640456, 2686593, 2745639, 2755480, 2816040, 2933840, 2956842, 3050710, 3070392, 3099915, 3285380, 3300570, 3306576, 3379248, 3542760, 3582124, 3660852, 3772080, 3815280, 3837990, 3942456, 3965923, 4133220, 4224060, 4270994, 4400760, 4477655, 4576065, 4605588, 4881136, 4928070, 4959864, 5117320, 5280912, 5373186, 5491278, 5510960, 5632080, 5756985, 5913684, 6101420, 6140784, 6199830, 6406491, 6570760, 6601140, 7085520, 7164248, 7321704, 7392105, 7675980, 7884912, 7931846, 8059779, 8266440, 8448120, 8541988, 8801520, 8955310, 9152130, 9211176, 9856140, 9919728, 10234640, 10677485, 10746372, 10982556, 11513970, 11827368, 11897769, 12202840, 12399660, 12812982, 13141520, 13202280, 13432965, 13728195, 14328496, 14643408, 14784210, 15351960, 15863692, 16119558, 16532880, 16896240, 17083976, 17910620, 18304260, 18422352, 19219473, 19712280, 19829615, 21354970, 21492744, 21965112, 23027940, 23654736, 23795538, 24405680, 24799320, 25625964, 26404560, 26865930, 27456390, 27761461, 29568420, 30703920, 31727384, 32032455, 32239116, 34167952, 35693307, 35821240, 36608520, 38438946, 39424560, 39659230, 40298895, 42709940, 42985488, 43930224, 46055880, 47591076, 49598640, 51251928, 53731860, 54912780, 55522922, 59136840, 59488845, 63454768, 64064910, 64478232, 71386614, 71642480, 73217040, 76877892, 79318460, 80597790, 83284383, 85419880, 92111760, 95182152, 96097365, 102503856, 107463720, 109825560, 111045844, 118273680, 118977690, 128129820, 128956464, 138807305, 142773228, 153755784, 158636920, 161195580, 166568766, 170839760, 178466535, 190364304, 192194730, 214927440, 219651120, 222091688, 237955380, 249853149, 256259640, 277614610, 285546456, 307511568, 317273840, 322391160, 333137532, 356933070, 384389460, 416421915, 444183376, 475910760, 499706298, 512519280, 555229220, 571092912, 644782320, 666275064, 713866140, 768778920, 832843830, 951821520, 999412596, 1110458440, 1249265745, 1332550128, 1427732280, 1537557840, 1665687660, 1998825192, 2220916880, 2498531490, 2855464560, 3331375320, 3997650384, 4997062980, 6662750640, 9994125960, 19988251920]

約数ペア:

[(1, 19988251920), (2, 9994125960), (3, 6662750640), (4, 4997062980), (5, 3997650384), (6, 3331375320), (7, 2855464560), (8, 2498531490), (9, 2220916880), (10, 1998825192), (12, 1665687660), (13, 1537557840), (14, 1427732280), (15, 1332550128), (16, 1249265745), (18, 1110458440), (20, 999412596), (21, 951821520), (24, 832843830), (26, 768778920), (28, 713866140), (30, 666275064), (31, 644782320), (35, 571092912), (36, 555229220), (39, 512519280), (40, 499706298), (42, 475910760), (45, 444183376), (48, 416421915), (52, 384389460), (56, 356933070), (60, 333137532), (62, 322391160), (63, 317273840), (65, 307511568), (70, 285546456), (72, 277614610), (78, 256259640), (80, 249853149), (84, 237955380), (90, 222091688), (91, 219651120), (93, 214927440), (104, 192194730), (105, 190364304), (112, 178466535), (117, 170839760), (120, 166568766), (124, 161195580), (126, 158636920), (130, 153755784), (140, 142773228), (144, 138807305), (155, 128956464), (156, 128129820), (168, 118977690), (169, 118273680), (180, 111045844), (182, 109825560), (186, 107463720), (195, 102503856), (208, 96097365), (210, 95182152), (217, 92111760), (234, 85419880), (240, 83284383), (248, 80597790), (252, 79318460), (260, 76877892), (273, 73217040), (279, 71642480), (280, 71386614), (310, 64478232), (312, 64064910), (315, 63454768), (336, 59488845), (338, 59136840), (360, 55522922), (364, 54912780), (372, 53731860), (390, 51251928), (403, 49598640), (420, 47591076), (434, 46055880), (455, 43930224), (465, 42985488), (468, 42709940), (496, 40298895), (504, 39659230), (507, 39424560), (520, 38438946), (546, 36608520), (558, 35821240), (560, 35693307), (585, 34167952), (620, 32239116), (624, 32032455), (630, 31727384), (651, 30703920), (676, 29568420), (720, 27761461), (728, 27456390), (744, 26865930), (757, 26404560), (780, 25625964), (806, 24799320), (819, 24405680), (840, 23795538), (845, 23654736), (868, 23027940), (910, 21965112), (930, 21492744), (936, 21354970), (1008, 19829615), (1014, 19712280), (1040, 19219473), (1085, 18422352), (1092, 18304260), (1116, 17910620), (1170, 17083976), (1183, 16896240), (1209, 16532880), (1240, 16119558), (1260, 15863692), (1302, 15351960), (1352, 14784210), (1365, 14643408), (1395, 14328496), (1456, 13728195), (1488, 13432965), (1514, 13202280), (1521, 13141520), (1560, 12812982), (1612, 12399660), (1638, 12202840), (1680, 11897769), (1690, 11827368), (1736, 11513970), (1820, 10982556), (1860, 10746372), (1872, 10677485), (1953, 10234640), (2015, 9919728), (2028, 9856140), (2170, 9211176), (2184, 9152130), (2232, 8955310), (2271, 8801520), (2340, 8541988), (2366, 8448120), (2418, 8266440), (2480, 8059779), (2520, 7931846), (2535, 7884912), (2604, 7675980), (2704, 7392105), (2730, 7321704), (2790, 7164248), (2821, 7085520), (3028, 6601140), (3042, 6570760), (3120, 6406491), (3224, 6199830), (3255, 6140784), (3276, 6101420), (3380, 5913684), (3472, 5756985), (3549, 5632080), (3627, 5510960), (3640, 5491278), (3720, 5373186), (3785, 5280912), (3906, 5117320), (4030, 4959864), (4056, 4928070), (4095, 4881136), (4340, 4605588), (4368, 4576065), (4464, 4477655), (4542, 4400760), (4680, 4270994), (4732, 4224060), (4836, 4133220), (5040, 3965923), (5070, 3942456), (5208, 3837990), (5239, 3815280), (5299, 3772080), (5460, 3660852), (5580, 3582124), (5642, 3542760), (5915, 3379248), (6045, 3306576), (6056, 3300570), (6084, 3285380), (6448, 3099915), (6510, 3070392), (6552, 3050710), (6760, 2956842), (6813, 2933840), (7098, 2816040), (7254, 2755480), (7280, 2745639), (7440, 2686593), (7570, 2640456), (7605, 2628304), (7812, 2558660), (8060, 2479932), (8112, 2464035), (8190, 2440568), (8463, 2361840), (8680, 2302794), (9084, 2200380), (9360, 2135497), (9464, 2112030), (9672, 2066610), (9765, 2046928), (9841, 2031120), (10140, 1971228), (10416, 1918995), (10478, 1907640), (10598, 1886040), (10647, 1877360), (10920, 1830426), (11160, 1791062), (11284, 1771380), (11355, 1760304), (11830, 1689624), (12090, 1653288), (12112, 1650285), (12168, 1642690), (13020, 1535196), (13104, 1525355), (13520, 1478421), (13626, 1466920), (14105, 1417104), (14196, 1408020), (14508, 1377740), (15140, 1320228), (15210, 1314152), (15624, 1279330), (15717, 1271760), (15897, 1257360), (16120, 1239966), (16380, 1220284), (16926, 1180920), (17360, 1151397), (17745, 1126416), (18135, 1102192), (18168, 1100190), (18928, 1056015), (19344, 1033305), (19530, 1023464), (19682, 1015560), (20280, 985614), (20956, 953820), (21196, 943020), (21294, 938680), (21840, 915213), (22320, 895531), (22568, 885690), (22710, 880152), (23467, 851760), (23660, 844812), (24180, 826644), (24336, 821345), (25389, 787280), (26040, 767598), (26195, 763056), (26495, 754416), (27252, 733460), (28210, 708552), (28392, 704010), (29016, 688870), (29523, 677040), (30280, 660114), (30420, 657076), (31248, 639665), (31434, 635880), (31794, 628680), (32240, 619983), (32760, 610142), (33852, 590460), (34065, 586768), (35490, 563208), (36270, 551096), (36336, 550095), (36673, 545040), (39060, 511732), (39364, 507780), (40560, 492807), (41912, 476910), (42315, 472368), (42392, 471510), (42588, 469340), (45136, 442845), (45420, 440076), (46934, 425880), (47151, 423920), (47320, 422406), (47691, 419120), (48360, 413322), (49205, 406224), (50778, 393640), (52080, 383799), (52390, 381528), (52990, 377208), (53235, 375472), (54504, 366730), (56420, 354276), (56784, 352005), (58032, 344435), (59046, 338520), (60560, 330057), (60840, 328538), (62868, 317940), (63588, 314340), (65520, 305071), (67704, 295230), (68130, 293384), (68887, 290160), (70401, 283920), (70980, 281604), (72540, 275548), (73346, 272520), (78120, 255866), (78585, 254352), (78728, 253890), (79485, 251472), (83824, 238455), (84630, 236184), (84784, 235755), (85176, 234670), (88569, 225680), (90840, 220038), (93868, 212940), (94302, 211960), (94640, 211203), (95382, 209560), (96720, 206661), (98410, 203112), (101556, 196820), (104780, 190764), (105980, 188604), (106470, 187736), (109008, 183365), (110019, 181680), (112840, 177138), (117335, 170352), (118092, 169260), (121680, 164269), (125736, 158970), (126945, 157456), (127176, 157170), (127933, 156240), (135408, 147615), (136260, 146692), (137774, 145080), (140802, 141960)]