20865849984

素因数分解:

$2^7\times 3^2\times 7^1\times {\mathrm{2587531}}^1$

素因数の和:2587558

約数の個数: 96

約数和(自身を含む): 68621348640

約数和(自身を除く): 47755498656

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 64, 72, 84, 96, 112, 126, 128, 144, 168, 192, 224, 252, 288, 336, 384, 448, 504, 576, 672, 896, 1008, 1152, 1344, 2016, 2688, 4032, 8064, 2587531, 5175062, 7762593, 10350124, 15525186, 18112717, 20700248, 23287779, 31050372, 36225434, 41400496, 46575558, 54338151, 62100744, 72450868, 82800992, 93151116, 108676302, 124201488, 144901736, 163014453, 165601984, 186302232, 217352604, 248402976, 289803472, 326028906, 331203968, 372604464, 434705208, 496805952, 579606944, 652057812, 745208928, 869410416, 993611904, 1159213888, 1304115624, 1490417856, 1738820832, 2318427776, 2608231248, 2980835712, 3477641664, 5216462496, 6955283328, 10432924992, 20865849984]

約数ペア:

[(1, 20865849984), (2, 10432924992), (3, 6955283328), (4, 5216462496), (6, 3477641664), (7, 2980835712), (8, 2608231248), (9, 2318427776), (12, 1738820832), (14, 1490417856), (16, 1304115624), (18, 1159213888), (21, 993611904), (24, 869410416), (28, 745208928), (32, 652057812), (36, 579606944), (42, 496805952), (48, 434705208), (56, 372604464), (63, 331203968), (64, 326028906), (72, 289803472), (84, 248402976), (96, 217352604), (112, 186302232), (126, 165601984), (128, 163014453), (144, 144901736), (168, 124201488), (192, 108676302), (224, 93151116), (252, 82800992), (288, 72450868), (336, 62100744), (384, 54338151), (448, 46575558), (504, 41400496), (576, 36225434), (672, 31050372), (896, 23287779), (1008, 20700248), (1152, 18112717), (1344, 15525186), (2016, 10350124), (2688, 7762593), (4032, 5175062), (8064, 2587531)]