20699520

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{10781}}^1$

素因数の和:10803

約数の個数: 64

約数和(自身を含む): 65985840

約数和(自身を除く): 45286320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 10781, 21562, 32343, 43124, 53905, 64686, 86248, 107810, 129372, 161715, 172496, 215620, 258744, 323430, 344992, 431240, 517488, 646860, 689984, 862480, 1034976, 1293720, 1379968, 1724960, 2069952, 2587440, 3449920, 4139904, 5174880, 6899840, 10349760, 20699520]

約数ペア:

[(1, 20699520), (2, 10349760), (3, 6899840), (4, 5174880), (5, 4139904), (6, 3449920), (8, 2587440), (10, 2069952), (12, 1724960), (15, 1379968), (16, 1293720), (20, 1034976), (24, 862480), (30, 689984), (32, 646860), (40, 517488), (48, 431240), (60, 344992), (64, 323430), (80, 258744), (96, 215620), (120, 172496), (128, 161715), (160, 129372), (192, 107810), (240, 86248), (320, 64686), (384, 53905), (480, 43124), (640, 32343), (960, 21562), (1920, 10781)]