1990385280

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1399}}^1$

素因数の和:1456

約数の個数: 384

約数和(自身を含む): 7796880000

約数和(自身を除く): 5806494720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 19, 20, 24, 26, 30, 32, 36, 38, 39, 40, 45, 48, 52, 57, 60, 64, 65, 72, 76, 78, 80, 90, 95, 96, 104, 114, 117, 120, 128, 130, 144, 152, 156, 160, 171, 180, 190, 192, 195, 208, 228, 234, 240, 247, 260, 285, 288, 304, 312, 320, 342, 360, 380, 384, 390, 416, 456, 468, 480, 494, 520, 570, 576, 585, 608, 624, 640, 684, 720, 741, 760, 780, 832, 855, 912, 936, 960, 988, 1040, 1140, 1152, 1170, 1216, 1235, 1248, 1368, 1399, 1440, 1482, 1520, 1560, 1664, 1710, 1824, 1872, 1920, 1976, 2080, 2223, 2280, 2340, 2432, 2470, 2496, 2736, 2798, 2880, 2964, 3040, 3120, 3420, 3648, 3705, 3744, 3952, 4160, 4197, 4446, 4560, 4680, 4940, 4992, 5472, 5596, 5760, 5928, 6080, 6240, 6840, 6995, 7296, 7410, 7488, 7904, 8320, 8394, 8892, 9120, 9360, 9880, 10944, 11115, 11192, 11856, 12160, 12480, 12591, 13680, 13990, 14820, 14976, 15808, 16788, 17784, 18187, 18240, 18720, 19760, 20985, 21888, 22230, 22384, 23712, 24960, 25182, 26581, 27360, 27980, 29640, 31616, 33576, 35568, 36374, 36480, 37440, 39520, 41970, 44460, 44768, 47424, 50364, 53162, 54561, 54720, 55960, 59280, 62955, 67152, 71136, 72748, 74880, 79040, 79743, 83940, 88920, 89536, 90935, 94848, 100728, 106324, 109122, 109440, 111920, 118560, 125910, 132905, 134304, 142272, 145496, 158080, 159486, 163683, 167880, 177840, 179072, 181870, 201456, 212648, 218244, 223840, 237120, 239229, 251820, 265810, 268608, 272805, 284544, 290992, 318972, 327366, 335760, 345553, 355680, 363740, 398715, 402912, 425296, 436488, 447680, 474240, 478458, 503640, 531620, 537216, 545610, 581984, 637944, 654732, 671520, 691106, 711360, 727480, 797430, 805824, 818415, 850592, 872976, 895360, 956916, 1007280, 1036659, 1063240, 1091220, 1163968, 1196145, 1275888, 1309464, 1343040, 1382212, 1422720, 1454960, 1594860, 1611648, 1636830, 1701184, 1727765, 1745952, 1913832, 2014560, 2073318, 2126480, 2182440, 2327936, 2392290, 2551776, 2618928, 2686080, 2764424, 2909920, 3109977, 3189720, 3273660, 3402368, 3455530, 3491904, 3827664, 4029120, 4146636, 4252960, 4364880, 4784580, 5103552, 5183295, 5237856, 5528848, 5819840, 6219954, 6379440, 6547320, 6911060, 6983808, 7655328, 8058240, 8293272, 8505920, 8729760, 9569160, 10207104, 10366590, 10475712, 11057696, 11639680, 12439908, 12758880, 13094640, 13822120, 15310656, 15549885, 16586544, 17011840, 17459520, 19138320, 20733180, 20951424, 22115392, 24879816, 25517760, 26189280, 27644240, 30621312, 31099770, 33173088, 34919040, 38276640, 41466360, 44230784, 49759632, 51035520, 52378560, 55288480, 62199540, 66346176, 76553280, 82932720, 99519264, 104757120, 110576960, 124399080, 132692352, 153106560, 165865440, 199038528, 221153920, 248798160, 331730880, 398077056, 497596320, 663461760, 995192640, 1990385280]

約数ペア:

[(1, 1990385280), (2, 995192640), (3, 663461760), (4, 497596320), (5, 398077056), (6, 331730880), (8, 248798160), (9, 221153920), (10, 199038528), (12, 165865440), (13, 153106560), (15, 132692352), (16, 124399080), (18, 110576960), (19, 104757120), (20, 99519264), (24, 82932720), (26, 76553280), (30, 66346176), (32, 62199540), (36, 55288480), (38, 52378560), (39, 51035520), (40, 49759632), (45, 44230784), (48, 41466360), (52, 38276640), (57, 34919040), (60, 33173088), (64, 31099770), (65, 30621312), (72, 27644240), (76, 26189280), (78, 25517760), (80, 24879816), (90, 22115392), (95, 20951424), (96, 20733180), (104, 19138320), (114, 17459520), (117, 17011840), (120, 16586544), (128, 15549885), (130, 15310656), (144, 13822120), (152, 13094640), (156, 12758880), (160, 12439908), (171, 11639680), (180, 11057696), (190, 10475712), (192, 10366590), (195, 10207104), (208, 9569160), (228, 8729760), (234, 8505920), (240, 8293272), (247, 8058240), (260, 7655328), (285, 6983808), (288, 6911060), (304, 6547320), (312, 6379440), (320, 6219954), (342, 5819840), (360, 5528848), (380, 5237856), (384, 5183295), (390, 5103552), (416, 4784580), (456, 4364880), (468, 4252960), (480, 4146636), (494, 4029120), (520, 3827664), (570, 3491904), (576, 3455530), (585, 3402368), (608, 3273660), (624, 3189720), (640, 3109977), (684, 2909920), (720, 2764424), (741, 2686080), (760, 2618928), (780, 2551776), (832, 2392290), (855, 2327936), (912, 2182440), (936, 2126480), (960, 2073318), (988, 2014560), (1040, 1913832), (1140, 1745952), (1152, 1727765), (1170, 1701184), (1216, 1636830), (1235, 1611648), (1248, 1594860), (1368, 1454960), (1399, 1422720), (1440, 1382212), (1482, 1343040), (1520, 1309464), (1560, 1275888), (1664, 1196145), (1710, 1163968), (1824, 1091220), (1872, 1063240), (1920, 1036659), (1976, 1007280), (2080, 956916), (2223, 895360), (2280, 872976), (2340, 850592), (2432, 818415), (2470, 805824), (2496, 797430), (2736, 727480), (2798, 711360), (2880, 691106), (2964, 671520), (3040, 654732), (3120, 637944), (3420, 581984), (3648, 545610), (3705, 537216), (3744, 531620), (3952, 503640), (4160, 478458), (4197, 474240), (4446, 447680), (4560, 436488), (4680, 425296), (4940, 402912), (4992, 398715), (5472, 363740), (5596, 355680), (5760, 345553), (5928, 335760), (6080, 327366), (6240, 318972), (6840, 290992), (6995, 284544), (7296, 272805), (7410, 268608), (7488, 265810), (7904, 251820), (8320, 239229), (8394, 237120), (8892, 223840), (9120, 218244), (9360, 212648), (9880, 201456), (10944, 181870), (11115, 179072), (11192, 177840), (11856, 167880), (12160, 163683), (12480, 159486), (12591, 158080), (13680, 145496), (13990, 142272), (14820, 134304), (14976, 132905), (15808, 125910), (16788, 118560), (17784, 111920), (18187, 109440), (18240, 109122), (18720, 106324), (19760, 100728), (20985, 94848), (21888, 90935), (22230, 89536), (22384, 88920), (23712, 83940), (24960, 79743), (25182, 79040), (26581, 74880), (27360, 72748), (27980, 71136), (29640, 67152), (31616, 62955), (33576, 59280), (35568, 55960), (36374, 54720), (36480, 54561), (37440, 53162), (39520, 50364), (41970, 47424), (44460, 44768)]