400405680

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{479}}^1$

素因数の和:550

約数の個数: 240

約数和(自身を含む): 1429908480

約数和(自身を除く): 1029502800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 43, 45, 48, 54, 60, 72, 80, 81, 86, 90, 108, 120, 129, 135, 144, 162, 172, 180, 215, 216, 240, 243, 258, 270, 324, 344, 360, 387, 405, 430, 432, 479, 486, 516, 540, 645, 648, 688, 720, 774, 810, 860, 958, 972, 1032, 1080, 1161, 1215, 1290, 1296, 1437, 1548, 1620, 1720, 1916, 1935, 1944, 2064, 2160, 2322, 2395, 2430, 2580, 2874, 3096, 3240, 3440, 3483, 3832, 3870, 3888, 4311, 4644, 4790, 4860, 5160, 5748, 5805, 6192, 6480, 6966, 7185, 7664, 7740, 8622, 9288, 9580, 9720, 10320, 10449, 11496, 11610, 12933, 13932, 14370, 15480, 17244, 17415, 18576, 19160, 19440, 20597, 20898, 21555, 22992, 23220, 25866, 27864, 28740, 30960, 34488, 34830, 38320, 38799, 41194, 41796, 43110, 46440, 51732, 52245, 55728, 57480, 61791, 64665, 68976, 69660, 77598, 82388, 83592, 86220, 92880, 102985, 103464, 104490, 114960, 116397, 123582, 129330, 139320, 155196, 164776, 167184, 172440, 185373, 193995, 205970, 206928, 208980, 232794, 247164, 258660, 278640, 308955, 310392, 329552, 344880, 370746, 387990, 411940, 417960, 465588, 494328, 517320, 556119, 581985, 617910, 620784, 741492, 775980, 823880, 835920, 926865, 931176, 988656, 1034640, 1112238, 1163970, 1235820, 1482984, 1551960, 1647760, 1668357, 1853730, 1862352, 2224476, 2327940, 2471640, 2780595, 2965968, 3103920, 3336714, 3707460, 4448952, 4655880, 4943280, 5005071, 5561190, 6673428, 7414920, 8341785, 8897904, 9311760, 10010142, 11122380, 13346856, 14829840, 16683570, 20020284, 22244760, 25025355, 26693712, 33367140, 40040568, 44489520, 50050710, 66734280, 80081136, 100101420, 133468560, 200202840, 400405680]

約数ペア:

[(1, 400405680), (2, 200202840), (3, 133468560), (4, 100101420), (5, 80081136), (6, 66734280), (8, 50050710), (9, 44489520), (10, 40040568), (12, 33367140), (15, 26693712), (16, 25025355), (18, 22244760), (20, 20020284), (24, 16683570), (27, 14829840), (30, 13346856), (36, 11122380), (40, 10010142), (43, 9311760), (45, 8897904), (48, 8341785), (54, 7414920), (60, 6673428), (72, 5561190), (80, 5005071), (81, 4943280), (86, 4655880), (90, 4448952), (108, 3707460), (120, 3336714), (129, 3103920), (135, 2965968), (144, 2780595), (162, 2471640), (172, 2327940), (180, 2224476), (215, 1862352), (216, 1853730), (240, 1668357), (243, 1647760), (258, 1551960), (270, 1482984), (324, 1235820), (344, 1163970), (360, 1112238), (387, 1034640), (405, 988656), (430, 931176), (432, 926865), (479, 835920), (486, 823880), (516, 775980), (540, 741492), (645, 620784), (648, 617910), (688, 581985), (720, 556119), (774, 517320), (810, 494328), (860, 465588), (958, 417960), (972, 411940), (1032, 387990), (1080, 370746), (1161, 344880), (1215, 329552), (1290, 310392), (1296, 308955), (1437, 278640), (1548, 258660), (1620, 247164), (1720, 232794), (1916, 208980), (1935, 206928), (1944, 205970), (2064, 193995), (2160, 185373), (2322, 172440), (2395, 167184), (2430, 164776), (2580, 155196), (2874, 139320), (3096, 129330), (3240, 123582), (3440, 116397), (3483, 114960), (3832, 104490), (3870, 103464), (3888, 102985), (4311, 92880), (4644, 86220), (4790, 83592), (4860, 82388), (5160, 77598), (5748, 69660), (5805, 68976), (6192, 64665), (6480, 61791), (6966, 57480), (7185, 55728), (7664, 52245), (7740, 51732), (8622, 46440), (9288, 43110), (9580, 41796), (9720, 41194), (10320, 38799), (10449, 38320), (11496, 34830), (11610, 34488), (12933, 30960), (13932, 28740), (14370, 27864), (15480, 25866), (17244, 23220), (17415, 22992), (18576, 21555), (19160, 20898), (19440, 20597)]