640553760

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:201

約数の個数: 576

約数和(自身を含む): 2802159360

約数和(自身を除く): 2161605600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 20, 21, 22, 24, 28, 30, 32, 33, 35, 36, 40, 42, 44, 45, 48, 53, 55, 56, 60, 63, 66, 70, 72, 77, 80, 84, 88, 90, 96, 99, 105, 106, 109, 110, 112, 120, 126, 132, 140, 144, 154, 159, 160, 165, 168, 176, 180, 198, 210, 212, 218, 220, 224, 231, 240, 252, 264, 265, 280, 288, 308, 315, 318, 327, 330, 336, 352, 360, 371, 385, 396, 420, 424, 436, 440, 462, 477, 480, 495, 504, 528, 530, 545, 560, 583, 616, 630, 636, 654, 660, 672, 693, 720, 742, 763, 770, 792, 795, 840, 848, 872, 880, 924, 954, 981, 990, 1008, 1056, 1060, 1090, 1113, 1120, 1155, 1166, 1199, 1232, 1260, 1272, 1308, 1320, 1386, 1440, 1484, 1526, 1540, 1584, 1590, 1635, 1680, 1696, 1744, 1749, 1760, 1848, 1855, 1908, 1962, 1980, 2016, 2120, 2180, 2226, 2289, 2310, 2332, 2385, 2398, 2464, 2520, 2544, 2616, 2640, 2772, 2915, 2968, 3052, 3080, 3168, 3180, 3270, 3339, 3360, 3465, 3488, 3498, 3597, 3696, 3710, 3815, 3816, 3924, 3960, 4081, 4240, 4360, 4452, 4578, 4620, 4664, 4770, 4796, 4905, 5040, 5088, 5232, 5247, 5280, 5544, 5565, 5777, 5830, 5936, 5995, 6104, 6160, 6360, 6540, 6678, 6867, 6930, 6996, 7194, 7392, 7420, 7630, 7632, 7848, 7920, 8162, 8393, 8480, 8720, 8745, 8904, 9156, 9240, 9328, 9540, 9592, 9810, 10080, 10464, 10494, 10791, 11088, 11130, 11445, 11554, 11660, 11872, 11990, 12208, 12243, 12320, 12720, 13080, 13356, 13734, 13860, 13992, 14388, 14840, 15260, 15264, 15696, 15840, 16324, 16695, 16786, 17331, 17440, 17490, 17808, 17985, 18312, 18480, 18656, 19080, 19184, 19620, 20405, 20988, 21582, 22176, 22260, 22890, 23108, 23320, 23980, 24416, 24486, 25179, 25440, 26160, 26235, 26712, 27468, 27720, 27984, 28776, 28885, 29680, 30520, 31392, 32648, 33390, 33572, 34335, 34662, 34980, 35616, 35970, 36624, 36729, 36960, 38160, 38368, 39240, 40439, 40810, 41965, 41976, 43164, 44520, 45780, 46216, 46640, 47960, 48972, 50358, 51993, 52320, 52470, 53424, 53955, 54936, 55440, 55968, 57552, 57770, 59360, 61040, 61215, 63547, 65296, 66780, 67144, 68670, 69324, 69960, 71940, 73248, 73458, 75537, 76320, 78480, 80878, 81620, 83930, 83952, 86328, 86655, 89040, 91560, 92432, 93280, 95920, 97944, 100716, 103986, 104940, 106848, 107910, 109872, 110880, 115104, 115540, 121317, 122080, 122430, 125895, 127094, 130592, 133560, 134288, 137340, 138648, 139920, 143880, 146916, 151074, 156960, 161756, 163240, 167860, 167904, 172656, 173310, 178080, 183120, 183645, 184864, 190641, 191840, 195888, 201432, 202195, 207972, 209880, 215820, 219744, 231080, 242634, 244860, 251790, 254188, 259965, 267120, 268576, 274680, 277296, 279840, 287760, 293832, 302148, 317735, 323512, 326480, 335720, 345312, 346620, 363951, 366240, 367290, 377685, 381282, 391776, 402864, 404390, 415944, 419760, 431640, 444829, 462160, 485268, 489720, 503580, 508376, 519930, 534240, 549360, 554592, 571923, 575520, 587664, 604296, 606585, 635470, 647024, 652960, 671440, 693240, 727902, 734580, 755370, 762564, 805728, 808780, 831888, 839520, 863280, 889658, 924320, 953205, 970536, 979440, 1007160, 1016752, 1039860, 1098720, 1143846, 1175328, 1208592, 1213170, 1270940, 1294048, 1334487, 1342880, 1386480, 1455804, 1469160, 1510740, 1525128, 1617560, 1663776, 1726560, 1779316, 1819755, 1906410, 1941072, 1958880, 2014320, 2033504, 2079720, 2224145, 2287692, 2417184, 2426340, 2541880, 2668974, 2772960, 2859615, 2911608, 2938320, 3021480, 3050256, 3235120, 3558632, 3639510, 3812820, 3882144, 4003461, 4028640, 4159440, 4448290, 4575384, 4852680, 5083760, 5337948, 5719230, 5823216, 5876640, 6042960, 6100512, 6470240, 6672435, 7117264, 7279020, 7625640, 8006922, 8318880, 8896580, 9150768, 9705360, 10167520, 10675896, 11438460, 11646432, 12085920, 13344870, 14234528, 14558040, 15251280, 16013844, 17793160, 18301536, 19410720, 20017305, 21351792, 22876920, 26689740, 29116080, 30502560, 32027688, 35586320, 40034610, 42703584, 45753840, 53379480, 58232160, 64055376, 71172640, 80069220, 91507680, 106758960, 128110752, 160138440, 213517920, 320276880, 640553760]

約数ペア:

[(1, 640553760), (2, 320276880), (3, 213517920), (4, 160138440), (5, 128110752), (6, 106758960), (7, 91507680), (8, 80069220), (9, 71172640), (10, 64055376), (11, 58232160), (12, 53379480), (14, 45753840), (15, 42703584), (16, 40034610), (18, 35586320), (20, 32027688), (21, 30502560), (22, 29116080), (24, 26689740), (28, 22876920), (30, 21351792), (32, 20017305), (33, 19410720), (35, 18301536), (36, 17793160), (40, 16013844), (42, 15251280), (44, 14558040), (45, 14234528), (48, 13344870), (53, 12085920), (55, 11646432), (56, 11438460), (60, 10675896), (63, 10167520), (66, 9705360), (70, 9150768), (72, 8896580), (77, 8318880), (80, 8006922), (84, 7625640), (88, 7279020), (90, 7117264), (96, 6672435), (99, 6470240), (105, 6100512), (106, 6042960), (109, 5876640), (110, 5823216), (112, 5719230), (120, 5337948), (126, 5083760), (132, 4852680), (140, 4575384), (144, 4448290), (154, 4159440), (159, 4028640), (160, 4003461), (165, 3882144), (168, 3812820), (176, 3639510), (180, 3558632), (198, 3235120), (210, 3050256), (212, 3021480), (218, 2938320), (220, 2911608), (224, 2859615), (231, 2772960), (240, 2668974), (252, 2541880), (264, 2426340), (265, 2417184), (280, 2287692), (288, 2224145), (308, 2079720), (315, 2033504), (318, 2014320), (327, 1958880), (330, 1941072), (336, 1906410), (352, 1819755), (360, 1779316), (371, 1726560), (385, 1663776), (396, 1617560), (420, 1525128), (424, 1510740), (436, 1469160), (440, 1455804), (462, 1386480), (477, 1342880), (480, 1334487), (495, 1294048), (504, 1270940), (528, 1213170), (530, 1208592), (545, 1175328), (560, 1143846), (583, 1098720), (616, 1039860), (630, 1016752), (636, 1007160), (654, 979440), (660, 970536), (672, 953205), (693, 924320), (720, 889658), (742, 863280), (763, 839520), (770, 831888), (792, 808780), (795, 805728), (840, 762564), (848, 755370), (872, 734580), (880, 727902), (924, 693240), (954, 671440), (981, 652960), (990, 647024), (1008, 635470), (1056, 606585), (1060, 604296), (1090, 587664), (1113, 575520), (1120, 571923), (1155, 554592), (1166, 549360), (1199, 534240), (1232, 519930), (1260, 508376), (1272, 503580), (1308, 489720), (1320, 485268), (1386, 462160), (1440, 444829), (1484, 431640), (1526, 419760), (1540, 415944), (1584, 404390), (1590, 402864), (1635, 391776), (1680, 381282), (1696, 377685), (1744, 367290), (1749, 366240), (1760, 363951), (1848, 346620), (1855, 345312), (1908, 335720), (1962, 326480), (1980, 323512), (2016, 317735), (2120, 302148), (2180, 293832), (2226, 287760), (2289, 279840), (2310, 277296), (2332, 274680), (2385, 268576), (2398, 267120), (2464, 259965), (2520, 254188), (2544, 251790), (2616, 244860), (2640, 242634), (2772, 231080), (2915, 219744), (2968, 215820), (3052, 209880), (3080, 207972), (3168, 202195), (3180, 201432), (3270, 195888), (3339, 191840), (3360, 190641), (3465, 184864), (3488, 183645), (3498, 183120), (3597, 178080), (3696, 173310), (3710, 172656), (3815, 167904), (3816, 167860), (3924, 163240), (3960, 161756), (4081, 156960), (4240, 151074), (4360, 146916), (4452, 143880), (4578, 139920), (4620, 138648), (4664, 137340), (4770, 134288), (4796, 133560), (4905, 130592), (5040, 127094), (5088, 125895), (5232, 122430), (5247, 122080), (5280, 121317), (5544, 115540), (5565, 115104), (5777, 110880), (5830, 109872), (5936, 107910), (5995, 106848), (6104, 104940), (6160, 103986), (6360, 100716), (6540, 97944), (6678, 95920), (6867, 93280), (6930, 92432), (6996, 91560), (7194, 89040), (7392, 86655), (7420, 86328), (7630, 83952), (7632, 83930), (7848, 81620), (7920, 80878), (8162, 78480), (8393, 76320), (8480, 75537), (8720, 73458), (8745, 73248), (8904, 71940), (9156, 69960), (9240, 69324), (9328, 68670), (9540, 67144), (9592, 66780), (9810, 65296), (10080, 63547), (10464, 61215), (10494, 61040), (10791, 59360), (11088, 57770), (11130, 57552), (11445, 55968), (11554, 55440), (11660, 54936), (11872, 53955), (11990, 53424), (12208, 52470), (12243, 52320), (12320, 51993), (12720, 50358), (13080, 48972), (13356, 47960), (13734, 46640), (13860, 46216), (13992, 45780), (14388, 44520), (14840, 43164), (15260, 41976), (15264, 41965), (15696, 40810), (15840, 40439), (16324, 39240), (16695, 38368), (16786, 38160), (17331, 36960), (17440, 36729), (17490, 36624), (17808, 35970), (17985, 35616), (18312, 34980), (18480, 34662), (18656, 34335), (19080, 33572), (19184, 33390), (19620, 32648), (20405, 31392), (20988, 30520), (21582, 29680), (22176, 28885), (22260, 28776), (22890, 27984), (23108, 27720), (23320, 27468), (23980, 26712), (24416, 26235), (24486, 26160), (25179, 25440)]