138431520

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{383}}^1$

素因数の和:655

約数の個数: 144

約数和(自身を含む): 475517952

約数和(自身を除く): 337086432

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 251, 288, 360, 383, 480, 502, 720, 753, 766, 1004, 1149, 1255, 1440, 1506, 1532, 1915, 2008, 2259, 2298, 2510, 3012, 3064, 3447, 3765, 3830, 4016, 4518, 4596, 5020, 5745, 6024, 6128, 6894, 7530, 7660, 8032, 9036, 9192, 10040, 11295, 11490, 12048, 12256, 13788, 15060, 15320, 17235, 18072, 18384, 20080, 22590, 22980, 24096, 27576, 30120, 30640, 34470, 36144, 36768, 40160, 45180, 45960, 55152, 60240, 61280, 68940, 72288, 90360, 91920, 96133, 110304, 120480, 137880, 180720, 183840, 192266, 275760, 288399, 361440, 384532, 480665, 551520, 576798, 769064, 865197, 961330, 1153596, 1441995, 1538128, 1730394, 1922660, 2307192, 2883990, 3076256, 3460788, 3845320, 4325985, 4614384, 5767980, 6921576, 7690640, 8651970, 9228768, 11535960, 13843152, 15381280, 17303940, 23071920, 27686304, 34607880, 46143840, 69215760, 138431520]

約数ペア:

[(1, 138431520), (2, 69215760), (3, 46143840), (4, 34607880), (5, 27686304), (6, 23071920), (8, 17303940), (9, 15381280), (10, 13843152), (12, 11535960), (15, 9228768), (16, 8651970), (18, 7690640), (20, 6921576), (24, 5767980), (30, 4614384), (32, 4325985), (36, 3845320), (40, 3460788), (45, 3076256), (48, 2883990), (60, 2307192), (72, 1922660), (80, 1730394), (90, 1538128), (96, 1441995), (120, 1153596), (144, 961330), (160, 865197), (180, 769064), (240, 576798), (251, 551520), (288, 480665), (360, 384532), (383, 361440), (480, 288399), (502, 275760), (720, 192266), (753, 183840), (766, 180720), (1004, 137880), (1149, 120480), (1255, 110304), (1440, 96133), (1506, 91920), (1532, 90360), (1915, 72288), (2008, 68940), (2259, 61280), (2298, 60240), (2510, 55152), (3012, 45960), (3064, 45180), (3447, 40160), (3765, 36768), (3830, 36144), (4016, 34470), (4518, 30640), (4596, 30120), (5020, 27576), (5745, 24096), (6024, 22980), (6128, 22590), (6894, 20080), (7530, 18384), (7660, 18072), (8032, 17235), (9036, 15320), (9192, 15060), (10040, 13788), (11295, 12256), (11490, 12048)]