20152638720

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{56431}}^1$

素因数の和:56489

約数の個数: 216

約数和(自身を含む): 71976532992

約数和(自身を除く): 51823894272

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 64, 72, 80, 90, 93, 96, 120, 124, 128, 144, 155, 160, 180, 186, 192, 240, 248, 256, 279, 288, 310, 320, 360, 372, 384, 465, 480, 496, 558, 576, 620, 640, 720, 744, 768, 930, 960, 992, 1116, 1152, 1240, 1280, 1395, 1440, 1488, 1860, 1920, 1984, 2232, 2304, 2480, 2790, 2880, 2976, 3720, 3840, 3968, 4464, 4960, 5580, 5760, 5952, 7440, 7936, 8928, 9920, 11160, 11520, 11904, 14880, 17856, 19840, 22320, 23808, 29760, 35712, 39680, 44640, 56431, 59520, 71424, 89280, 112862, 119040, 169293, 178560, 225724, 282155, 338586, 357120, 451448, 507879, 564310, 677172, 846465, 902896, 1015758, 1128620, 1354344, 1692930, 1749361, 1805792, 2031516, 2257240, 2539395, 2708688, 3385860, 3498722, 3611584, 4063032, 4514480, 5078790, 5248083, 5417376, 6771720, 6997444, 7223168, 8126064, 8746805, 9028960, 10157580, 10496166, 10834752, 13543440, 13994888, 14446336, 15744249, 16252128, 17493610, 18057920, 20315160, 20992332, 21669504, 26240415, 27086880, 27989776, 31488498, 32504256, 34987220, 36115840, 40630320, 41984664, 43339008, 52480830, 54173760, 55979552, 62976996, 65008512, 69974440, 72231680, 78721245, 81260640, 83969328, 104961660, 108347520, 111959104, 125953992, 130017024, 139948880, 157442490, 162521280, 167938656, 209923320, 216695040, 223918208, 251907984, 279897760, 314884980, 325042560, 335877312, 419846640, 447836416, 503815968, 559795520, 629769960, 650085120, 671754624, 839693280, 1007631936, 1119591040, 1259539920, 1343509248, 1679386560, 2015263872, 2239182080, 2519079840, 3358773120, 4030527744, 5038159680, 6717546240, 10076319360, 20152638720]

約数ペア:

[(1, 20152638720), (2, 10076319360), (3, 6717546240), (4, 5038159680), (5, 4030527744), (6, 3358773120), (8, 2519079840), (9, 2239182080), (10, 2015263872), (12, 1679386560), (15, 1343509248), (16, 1259539920), (18, 1119591040), (20, 1007631936), (24, 839693280), (30, 671754624), (31, 650085120), (32, 629769960), (36, 559795520), (40, 503815968), (45, 447836416), (48, 419846640), (60, 335877312), (62, 325042560), (64, 314884980), (72, 279897760), (80, 251907984), (90, 223918208), (93, 216695040), (96, 209923320), (120, 167938656), (124, 162521280), (128, 157442490), (144, 139948880), (155, 130017024), (160, 125953992), (180, 111959104), (186, 108347520), (192, 104961660), (240, 83969328), (248, 81260640), (256, 78721245), (279, 72231680), (288, 69974440), (310, 65008512), (320, 62976996), (360, 55979552), (372, 54173760), (384, 52480830), (465, 43339008), (480, 41984664), (496, 40630320), (558, 36115840), (576, 34987220), (620, 32504256), (640, 31488498), (720, 27989776), (744, 27086880), (768, 26240415), (930, 21669504), (960, 20992332), (992, 20315160), (1116, 18057920), (1152, 17493610), (1240, 16252128), (1280, 15744249), (1395, 14446336), (1440, 13994888), (1488, 13543440), (1860, 10834752), (1920, 10496166), (1984, 10157580), (2232, 9028960), (2304, 8746805), (2480, 8126064), (2790, 7223168), (2880, 6997444), (2976, 6771720), (3720, 5417376), (3840, 5248083), (3968, 5078790), (4464, 4514480), (4960, 4063032), (5580, 3611584), (5760, 3498722), (5952, 3385860), (7440, 2708688), (7936, 2539395), (8928, 2257240), (9920, 2031516), (11160, 1805792), (11520, 1749361), (11904, 1692930), (14880, 1354344), (17856, 1128620), (19840, 1015758), (22320, 902896), (23808, 846465), (29760, 677172), (35712, 564310), (39680, 507879), (44640, 451448), (56431, 357120), (59520, 338586), (71424, 282155), (89280, 225724), (112862, 178560), (119040, 169293)]