20617920

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{7159}}^1$

素因数の和:7182

約数の個数: 84

約数和(自身を含む): 70926960

約数和(自身を除く): 50309040

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, 64, 72, 80, 90, 96, 120, 144, 160, 180, 192, 240, 288, 320, 360, 480, 576, 720, 960, 1440, 2880, 7159, 14318, 21477, 28636, 35795, 42954, 57272, 64431, 71590, 85908, 107385, 114544, 128862, 143180, 171816, 214770, 229088, 257724, 286360, 322155, 343632, 429540, 458176, 515448, 572720, 644310, 687264, 859080, 1030896, 1145440, 1288620, 1374528, 1718160, 2061792, 2290880, 2577240, 3436320, 4123584, 5154480, 6872640, 10308960, 20617920]

約数ペア:

[(1, 20617920), (2, 10308960), (3, 6872640), (4, 5154480), (5, 4123584), (6, 3436320), (8, 2577240), (9, 2290880), (10, 2061792), (12, 1718160), (15, 1374528), (16, 1288620), (18, 1145440), (20, 1030896), (24, 859080), (30, 687264), (32, 644310), (36, 572720), (40, 515448), (45, 458176), (48, 429540), (60, 343632), (64, 322155), (72, 286360), (80, 257724), (90, 229088), (96, 214770), (120, 171816), (144, 143180), (160, 128862), (180, 114544), (192, 107385), (240, 85908), (288, 71590), (320, 64431), (360, 57272), (480, 42954), (576, 35795), (720, 28636), (960, 21477), (1440, 14318), (2880, 7159)]