20952960

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{1559}}^1$

素因数の和:1588

約数の個数: 128

約数和(自身を含む): 76377600

約数和(自身を除く): 55424640

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, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1559, 1680, 1920, 2240, 2688, 3118, 3360, 4480, 4677, 6236, 6720, 7795, 9354, 10913, 12472, 13440, 15590, 18708, 21826, 23385, 24944, 31180, 32739, 37416, 43652, 46770, 49888, 54565, 62360, 65478, 74832, 87304, 93540, 99776, 109130, 124720, 130956, 149664, 163695, 174608, 187080, 199552, 218260, 249440, 261912, 299328, 327390, 349216, 374160, 436520, 498880, 523824, 598656, 654780, 698432, 748320, 873040, 997760, 1047648, 1309560, 1396864, 1496640, 1746080, 2095296, 2619120, 2993280, 3492160, 4190592, 5238240, 6984320, 10476480, 20952960]

約数ペア:

[(1, 20952960), (2, 10476480), (3, 6984320), (4, 5238240), (5, 4190592), (6, 3492160), (7, 2993280), (8, 2619120), (10, 2095296), (12, 1746080), (14, 1496640), (15, 1396864), (16, 1309560), (20, 1047648), (21, 997760), (24, 873040), (28, 748320), (30, 698432), (32, 654780), (35, 598656), (40, 523824), (42, 498880), (48, 436520), (56, 374160), (60, 349216), (64, 327390), (70, 299328), (80, 261912), (84, 249440), (96, 218260), (105, 199552), (112, 187080), (120, 174608), (128, 163695), (140, 149664), (160, 130956), (168, 124720), (192, 109130), (210, 99776), (224, 93540), (240, 87304), (280, 74832), (320, 65478), (336, 62360), (384, 54565), (420, 49888), (448, 46770), (480, 43652), (560, 37416), (640, 32739), (672, 31180), (840, 24944), (896, 23385), (960, 21826), (1120, 18708), (1344, 15590), (1559, 13440), (1680, 12472), (1920, 10913), (2240, 9354), (2688, 7795), (3118, 6720), (3360, 6236), (4480, 4677)]