20721536640

素因数分解:

$2^7\times 3^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{3359}}^1$

素因数の和:3414

約数の個数: 640

約数和(自身を含む): 89573299200

約数和(自身を除く): 68851762560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 17, 18, 20, 21, 24, 27, 28, 30, 32, 34, 35, 36, 40, 42, 45, 48, 51, 54, 56, 60, 63, 64, 68, 70, 72, 80, 81, 84, 85, 90, 96, 102, 105, 108, 112, 119, 120, 126, 128, 135, 136, 140, 144, 153, 160, 162, 168, 170, 180, 189, 192, 204, 210, 216, 224, 238, 240, 252, 255, 270, 272, 280, 288, 306, 315, 320, 324, 336, 340, 357, 360, 378, 384, 405, 408, 420, 432, 448, 459, 476, 480, 504, 510, 540, 544, 560, 567, 576, 595, 612, 630, 640, 648, 672, 680, 714, 720, 756, 765, 810, 816, 840, 864, 896, 918, 945, 952, 960, 1008, 1020, 1071, 1080, 1088, 1120, 1134, 1152, 1190, 1224, 1260, 1296, 1344, 1360, 1377, 1428, 1440, 1512, 1530, 1620, 1632, 1680, 1728, 1785, 1836, 1890, 1904, 1920, 2016, 2040, 2142, 2160, 2176, 2240, 2268, 2295, 2380, 2448, 2520, 2592, 2688, 2720, 2754, 2835, 2856, 2880, 3024, 3060, 3213, 3240, 3264, 3359, 3360, 3456, 3570, 3672, 3780, 3808, 4032, 4080, 4284, 4320, 4480, 4536, 4590, 4760, 4896, 5040, 5184, 5355, 5440, 5508, 5670, 5712, 5760, 6048, 6120, 6426, 6480, 6528, 6718, 6720, 6885, 7140, 7344, 7560, 7616, 8064, 8160, 8568, 8640, 9072, 9180, 9520, 9639, 9792, 10077, 10080, 10368, 10710, 10880, 11016, 11340, 11424, 12096, 12240, 12852, 12960, 13436, 13440, 13770, 14280, 14688, 15120, 15232, 16065, 16320, 16795, 17136, 17280, 18144, 18360, 19040, 19278, 19584, 20154, 20160, 21420, 22032, 22680, 22848, 23513, 24192, 24480, 25704, 25920, 26872, 27540, 28560, 29376, 30231, 30240, 32130, 32640, 33590, 34272, 36288, 36720, 38080, 38556, 40308, 40320, 42840, 44064, 45360, 45696, 47026, 48195, 48960, 50385, 51408, 51840, 53744, 55080, 57103, 57120, 58752, 60462, 60480, 64260, 67180, 68544, 70539, 72576, 73440, 76160, 77112, 80616, 85680, 88128, 90693, 90720, 94052, 96390, 97920, 100770, 102816, 107488, 110160, 114206, 114240, 117565, 120924, 120960, 128520, 134360, 137088, 141078, 146880, 151155, 154224, 161232, 171309, 171360, 176256, 181386, 181440, 188104, 192780, 201540, 205632, 211617, 214976, 220320, 228412, 228480, 235130, 241848, 257040, 268720, 272079, 282156, 285515, 293760, 302310, 308448, 322464, 342618, 342720, 352695, 362772, 362880, 376208, 385560, 399721, 403080, 411264, 423234, 429952, 440640, 453465, 456824, 470260, 483696, 513927, 514080, 537440, 544158, 564312, 571030, 604620, 616896, 634851, 644928, 685236, 685440, 705390, 725544, 752416, 771120, 799442, 806160, 846468, 856545, 881280, 906930, 913648, 940520, 967392, 1027854, 1028160, 1058085, 1074880, 1088316, 1128624, 1142060, 1199163, 1209240, 1233792, 1269702, 1289856, 1360395, 1370472, 1410780, 1451088, 1504832, 1541781, 1542240, 1598884, 1612320, 1692936, 1713090, 1813860, 1827296, 1881040, 1904553, 1934784, 1998605, 2055708, 2056320, 2116170, 2149760, 2176632, 2257248, 2284120, 2398326, 2418480, 2539404, 2569635, 2720790, 2740944, 2821560, 2902176, 3009664, 3083562, 3084480, 3174255, 3197768, 3224640, 3385872, 3426180, 3597489, 3627720, 3654592, 3762080, 3809106, 3869568, 3997210, 4111416, 4232340, 4353264, 4514496, 4568240, 4625343, 4796652, 4836960, 5078808, 5139270, 5441580, 5481888, 5643120, 5804352, 5995815, 6167124, 6168960, 6348510, 6395536, 6449280, 6771744, 6852360, 7194978, 7255440, 7309184, 7524160, 7618212, 7708905, 7994420, 8222832, 8464680, 8706528, 9028992, 9136480, 9250686, 9522765, 9593304, 9673920, 10157616, 10278540, 10792467, 10883160, 10963776, 11286240, 11608704, 11991630, 12334248, 12697020, 12791072, 13543488, 13704720, 14389956, 14510880, 15048320, 15236424, 15417810, 15988840, 16445664, 16929360, 17413056, 17987445, 18272960, 18501372, 19045530, 19186608, 19347840, 20315232, 20557080, 21584934, 21766320, 21927552, 22572480, 23126715, 23983260, 24668496, 25394040, 25582144, 27086976, 27409440, 28779912, 29021760, 30472848, 30835620, 31977680, 32377401, 32891328, 33858720, 34826112, 35974890, 36545920, 37002744, 38091060, 38373216, 40630464, 41114160, 43169868, 43532640, 45144960, 46253430, 47966520, 49336992, 50788080, 51164288, 53962335, 54818880, 57559824, 58043520, 60945696, 61671240, 63955360, 64754802, 65782656, 67717440, 71949780, 74005488, 76182120, 76746432, 81260928, 82228320, 86339736, 87065280, 92506860, 95933040, 98673984, 101576160, 107924670, 109637760, 115119648, 121891392, 123342480, 127910720, 129509604, 135434880, 143899560, 148010976, 152364240, 153492864, 161887005, 164456640, 172679472, 174130560, 185013720, 191866080, 197347968, 203152320, 215849340, 230239296, 243782784, 246684960, 255821440, 259019208, 287799120, 296021952, 304728480, 323774010, 328913280, 345358944, 370027440, 383732160, 406304640, 431698680, 460478592, 493369920, 518038416, 575598240, 592043904, 609456960, 647548020, 690717888, 740054880, 767464320, 863397360, 986739840, 1036076832, 1151196480, 1218913920, 1295096040, 1381435776, 1480109760, 1726794720, 2072153664, 2302392960, 2590192080, 2960219520, 3453589440, 4144307328, 5180384160, 6907178880, 10360768320, 20721536640]

約数ペア:

[(1, 20721536640), (2, 10360768320), (3, 6907178880), (4, 5180384160), (5, 4144307328), (6, 3453589440), (7, 2960219520), (8, 2590192080), (9, 2302392960), (10, 2072153664), (12, 1726794720), (14, 1480109760), (15, 1381435776), (16, 1295096040), (17, 1218913920), (18, 1151196480), (20, 1036076832), (21, 986739840), (24, 863397360), (27, 767464320), (28, 740054880), (30, 690717888), (32, 647548020), (34, 609456960), (35, 592043904), (36, 575598240), (40, 518038416), (42, 493369920), (45, 460478592), (48, 431698680), (51, 406304640), (54, 383732160), (56, 370027440), (60, 345358944), (63, 328913280), (64, 323774010), (68, 304728480), (70, 296021952), (72, 287799120), (80, 259019208), (81, 255821440), (84, 246684960), (85, 243782784), (90, 230239296), (96, 215849340), (102, 203152320), (105, 197347968), (108, 191866080), (112, 185013720), (119, 174130560), (120, 172679472), (126, 164456640), (128, 161887005), (135, 153492864), (136, 152364240), (140, 148010976), (144, 143899560), (153, 135434880), (160, 129509604), (162, 127910720), (168, 123342480), (170, 121891392), (180, 115119648), (189, 109637760), (192, 107924670), (204, 101576160), (210, 98673984), (216, 95933040), (224, 92506860), (238, 87065280), (240, 86339736), (252, 82228320), (255, 81260928), (270, 76746432), (272, 76182120), (280, 74005488), (288, 71949780), (306, 67717440), (315, 65782656), (320, 64754802), (324, 63955360), (336, 61671240), (340, 60945696), (357, 58043520), (360, 57559824), (378, 54818880), (384, 53962335), (405, 51164288), (408, 50788080), (420, 49336992), (432, 47966520), (448, 46253430), (459, 45144960), (476, 43532640), (480, 43169868), (504, 41114160), (510, 40630464), (540, 38373216), (544, 38091060), (560, 37002744), (567, 36545920), (576, 35974890), (595, 34826112), (612, 33858720), (630, 32891328), (640, 32377401), (648, 31977680), (672, 30835620), (680, 30472848), (714, 29021760), (720, 28779912), (756, 27409440), (765, 27086976), (810, 25582144), (816, 25394040), (840, 24668496), (864, 23983260), (896, 23126715), (918, 22572480), (945, 21927552), (952, 21766320), (960, 21584934), (1008, 20557080), (1020, 20315232), (1071, 19347840), (1080, 19186608), (1088, 19045530), (1120, 18501372), (1134, 18272960), (1152, 17987445), (1190, 17413056), (1224, 16929360), (1260, 16445664), (1296, 15988840), (1344, 15417810), (1360, 15236424), (1377, 15048320), (1428, 14510880), (1440, 14389956), (1512, 13704720), (1530, 13543488), (1620, 12791072), (1632, 12697020), (1680, 12334248), (1728, 11991630), (1785, 11608704), (1836, 11286240), (1890, 10963776), (1904, 10883160), (1920, 10792467), (2016, 10278540), (2040, 10157616), (2142, 9673920), (2160, 9593304), (2176, 9522765), (2240, 9250686), (2268, 9136480), (2295, 9028992), (2380, 8706528), (2448, 8464680), (2520, 8222832), (2592, 7994420), (2688, 7708905), (2720, 7618212), (2754, 7524160), (2835, 7309184), (2856, 7255440), (2880, 7194978), (3024, 6852360), (3060, 6771744), (3213, 6449280), (3240, 6395536), (3264, 6348510), (3359, 6168960), (3360, 6167124), (3456, 5995815), (3570, 5804352), (3672, 5643120), (3780, 5481888), (3808, 5441580), (4032, 5139270), (4080, 5078808), (4284, 4836960), (4320, 4796652), (4480, 4625343), (4536, 4568240), (4590, 4514496), (4760, 4353264), (4896, 4232340), (5040, 4111416), (5184, 3997210), (5355, 3869568), (5440, 3809106), (5508, 3762080), (5670, 3654592), (5712, 3627720), (5760, 3597489), (6048, 3426180), (6120, 3385872), (6426, 3224640), (6480, 3197768), (6528, 3174255), (6718, 3084480), (6720, 3083562), (6885, 3009664), (7140, 2902176), (7344, 2821560), (7560, 2740944), (7616, 2720790), (8064, 2569635), (8160, 2539404), (8568, 2418480), (8640, 2398326), (9072, 2284120), (9180, 2257248), (9520, 2176632), (9639, 2149760), (9792, 2116170), (10077, 2056320), (10080, 2055708), (10368, 1998605), (10710, 1934784), (10880, 1904553), (11016, 1881040), (11340, 1827296), (11424, 1813860), (12096, 1713090), (12240, 1692936), (12852, 1612320), (12960, 1598884), (13436, 1542240), (13440, 1541781), (13770, 1504832), (14280, 1451088), (14688, 1410780), (15120, 1370472), (15232, 1360395), (16065, 1289856), (16320, 1269702), (16795, 1233792), (17136, 1209240), (17280, 1199163), (18144, 1142060), (18360, 1128624), (19040, 1088316), (19278, 1074880), (19584, 1058085), (20154, 1028160), (20160, 1027854), (21420, 967392), (22032, 940520), (22680, 913648), (22848, 906930), (23513, 881280), (24192, 856545), (24480, 846468), (25704, 806160), (25920, 799442), (26872, 771120), (27540, 752416), (28560, 725544), (29376, 705390), (30231, 685440), (30240, 685236), (32130, 644928), (32640, 634851), (33590, 616896), (34272, 604620), (36288, 571030), (36720, 564312), (38080, 544158), (38556, 537440), (40308, 514080), (40320, 513927), (42840, 483696), (44064, 470260), (45360, 456824), (45696, 453465), (47026, 440640), (48195, 429952), (48960, 423234), (50385, 411264), (51408, 403080), (51840, 399721), (53744, 385560), (55080, 376208), (57103, 362880), (57120, 362772), (58752, 352695), (60462, 342720), (60480, 342618), (64260, 322464), (67180, 308448), (68544, 302310), (70539, 293760), (72576, 285515), (73440, 282156), (76160, 272079), (77112, 268720), (80616, 257040), (85680, 241848), (88128, 235130), (90693, 228480), (90720, 228412), (94052, 220320), (96390, 214976), (97920, 211617), (100770, 205632), (102816, 201540), (107488, 192780), (110160, 188104), (114206, 181440), (114240, 181386), (117565, 176256), (120924, 171360), (120960, 171309), (128520, 161232), (134360, 154224), (137088, 151155), (141078, 146880)]