20796480

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1$

素因数の和:138

約数の個数: 224

約数和(自身を含む): 76809600

約数和(自身を除く): 56013120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 29, 30, 32, 36, 40, 45, 48, 54, 58, 60, 64, 72, 80, 83, 87, 90, 96, 108, 116, 120, 135, 144, 145, 160, 166, 174, 180, 192, 216, 232, 240, 249, 261, 270, 288, 290, 320, 332, 348, 360, 415, 432, 435, 464, 480, 498, 522, 540, 576, 580, 664, 696, 720, 747, 783, 830, 864, 870, 928, 960, 996, 1044, 1080, 1160, 1245, 1305, 1328, 1392, 1440, 1494, 1566, 1660, 1728, 1740, 1856, 1992, 2088, 2160, 2241, 2320, 2407, 2490, 2610, 2656, 2784, 2880, 2988, 3132, 3320, 3480, 3735, 3915, 3984, 4176, 4320, 4482, 4640, 4814, 4980, 5220, 5312, 5568, 5976, 6264, 6640, 6960, 7221, 7470, 7830, 7968, 8352, 8640, 8964, 9280, 9628, 9960, 10440, 11205, 11952, 12035, 12528, 13280, 13920, 14442, 14940, 15660, 15936, 16704, 17928, 19256, 19920, 20880, 21663, 22410, 23904, 24070, 25056, 26560, 27840, 28884, 29880, 31320, 35856, 36105, 38512, 39840, 41760, 43326, 44820, 47808, 48140, 50112, 57768, 59760, 62640, 64989, 71712, 72210, 77024, 79680, 83520, 86652, 89640, 96280, 108315, 115536, 119520, 125280, 129978, 143424, 144420, 154048, 173304, 179280, 192560, 216630, 231072, 239040, 250560, 259956, 288840, 324945, 346608, 358560, 385120, 433260, 462144, 519912, 577680, 649890, 693216, 717120, 770240, 866520, 1039824, 1155360, 1299780, 1386432, 1733040, 2079648, 2310720, 2599560, 3466080, 4159296, 5199120, 6932160, 10398240, 20796480]

約数ペア:

[(1, 20796480), (2, 10398240), (3, 6932160), (4, 5199120), (5, 4159296), (6, 3466080), (8, 2599560), (9, 2310720), (10, 2079648), (12, 1733040), (15, 1386432), (16, 1299780), (18, 1155360), (20, 1039824), (24, 866520), (27, 770240), (29, 717120), (30, 693216), (32, 649890), (36, 577680), (40, 519912), (45, 462144), (48, 433260), (54, 385120), (58, 358560), (60, 346608), (64, 324945), (72, 288840), (80, 259956), (83, 250560), (87, 239040), (90, 231072), (96, 216630), (108, 192560), (116, 179280), (120, 173304), (135, 154048), (144, 144420), (145, 143424), (160, 129978), (166, 125280), (174, 119520), (180, 115536), (192, 108315), (216, 96280), (232, 89640), (240, 86652), (249, 83520), (261, 79680), (270, 77024), (288, 72210), (290, 71712), (320, 64989), (332, 62640), (348, 59760), (360, 57768), (415, 50112), (432, 48140), (435, 47808), (464, 44820), (480, 43326), (498, 41760), (522, 39840), (540, 38512), (576, 36105), (580, 35856), (664, 31320), (696, 29880), (720, 28884), (747, 27840), (783, 26560), (830, 25056), (864, 24070), (870, 23904), (928, 22410), (960, 21663), (996, 20880), (1044, 19920), (1080, 19256), (1160, 17928), (1245, 16704), (1305, 15936), (1328, 15660), (1392, 14940), (1440, 14442), (1494, 13920), (1566, 13280), (1660, 12528), (1728, 12035), (1740, 11952), (1856, 11205), (1992, 10440), (2088, 9960), (2160, 9628), (2241, 9280), (2320, 8964), (2407, 8640), (2490, 8352), (2610, 7968), (2656, 7830), (2784, 7470), (2880, 7221), (2988, 6960), (3132, 6640), (3320, 6264), (3480, 5976), (3735, 5568), (3915, 5312), (3984, 5220), (4176, 4980), (4320, 4814), (4482, 4640)]