20516160

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:141

約数の個数: 224

約数和(自身を含む): 77248512

約数和(自身を除く): 56732352

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 43, 48, 56, 60, 64, 70, 71, 80, 84, 86, 96, 105, 112, 120, 129, 140, 142, 160, 168, 172, 192, 210, 213, 215, 224, 240, 258, 280, 284, 301, 320, 336, 344, 355, 420, 426, 430, 448, 480, 497, 516, 560, 568, 602, 645, 672, 688, 710, 840, 852, 860, 903, 960, 994, 1032, 1065, 1120, 1136, 1204, 1290, 1344, 1376, 1420, 1491, 1505, 1680, 1704, 1720, 1806, 1988, 2064, 2130, 2240, 2272, 2408, 2485, 2580, 2752, 2840, 2982, 3010, 3053, 3360, 3408, 3440, 3612, 3976, 4128, 4260, 4515, 4544, 4816, 4970, 5160, 5680, 5964, 6020, 6106, 6720, 6816, 6880, 7224, 7455, 7952, 8256, 8520, 9030, 9159, 9632, 9940, 10320, 11360, 11928, 12040, 12212, 13632, 13760, 14448, 14910, 15265, 15904, 17040, 18060, 18318, 19264, 19880, 20640, 21371, 22720, 23856, 24080, 24424, 28896, 29820, 30530, 31808, 34080, 36120, 36636, 39760, 41280, 42742, 45795, 47712, 48160, 48848, 57792, 59640, 61060, 64113, 68160, 72240, 73272, 79520, 85484, 91590, 95424, 96320, 97696, 106855, 119280, 122120, 128226, 144480, 146544, 159040, 170968, 183180, 195392, 213710, 238560, 244240, 256452, 288960, 293088, 320565, 341936, 366360, 427420, 477120, 488480, 512904, 586176, 641130, 683872, 732720, 854840, 976960, 1025808, 1282260, 1367744, 1465440, 1709680, 2051616, 2564520, 2930880, 3419360, 4103232, 5129040, 6838720, 10258080, 20516160]

約数ペア:

[(1, 20516160), (2, 10258080), (3, 6838720), (4, 5129040), (5, 4103232), (6, 3419360), (7, 2930880), (8, 2564520), (10, 2051616), (12, 1709680), (14, 1465440), (15, 1367744), (16, 1282260), (20, 1025808), (21, 976960), (24, 854840), (28, 732720), (30, 683872), (32, 641130), (35, 586176), (40, 512904), (42, 488480), (43, 477120), (48, 427420), (56, 366360), (60, 341936), (64, 320565), (70, 293088), (71, 288960), (80, 256452), (84, 244240), (86, 238560), (96, 213710), (105, 195392), (112, 183180), (120, 170968), (129, 159040), (140, 146544), (142, 144480), (160, 128226), (168, 122120), (172, 119280), (192, 106855), (210, 97696), (213, 96320), (215, 95424), (224, 91590), (240, 85484), (258, 79520), (280, 73272), (284, 72240), (301, 68160), (320, 64113), (336, 61060), (344, 59640), (355, 57792), (420, 48848), (426, 48160), (430, 47712), (448, 45795), (480, 42742), (497, 41280), (516, 39760), (560, 36636), (568, 36120), (602, 34080), (645, 31808), (672, 30530), (688, 29820), (710, 28896), (840, 24424), (852, 24080), (860, 23856), (903, 22720), (960, 21371), (994, 20640), (1032, 19880), (1065, 19264), (1120, 18318), (1136, 18060), (1204, 17040), (1290, 15904), (1344, 15265), (1376, 14910), (1420, 14448), (1491, 13760), (1505, 13632), (1680, 12212), (1704, 12040), (1720, 11928), (1806, 11360), (1988, 10320), (2064, 9940), (2130, 9632), (2240, 9159), (2272, 9030), (2408, 8520), (2485, 8256), (2580, 7952), (2752, 7455), (2840, 7224), (2982, 6880), (3010, 6816), (3053, 6720), (3360, 6106), (3408, 6020), (3440, 5964), (3612, 5680), (3976, 5160), (4128, 4970), (4260, 4816), (4515, 4544)]