20201104

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{863}}^1$

素因数の和:908

約数の個数: 80

約数和(自身を含む): 51425280

約数和(自身を除く): 31224176

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 19, 22, 28, 38, 44, 56, 76, 77, 88, 112, 133, 152, 154, 176, 209, 266, 304, 308, 418, 532, 616, 836, 863, 1064, 1232, 1463, 1672, 1726, 2128, 2926, 3344, 3452, 5852, 6041, 6904, 9493, 11704, 12082, 13808, 16397, 18986, 23408, 24164, 32794, 37972, 48328, 65588, 66451, 75944, 96656, 114779, 131176, 132902, 151888, 180367, 229558, 262352, 265804, 360734, 459116, 531608, 721468, 918232, 1063216, 1262569, 1442936, 1836464, 2525138, 2885872, 5050276, 10100552, 20201104]

約数ペア:

[(1, 20201104), (2, 10100552), (4, 5050276), (7, 2885872), (8, 2525138), (11, 1836464), (14, 1442936), (16, 1262569), (19, 1063216), (22, 918232), (28, 721468), (38, 531608), (44, 459116), (56, 360734), (76, 265804), (77, 262352), (88, 229558), (112, 180367), (133, 151888), (152, 132902), (154, 131176), (176, 114779), (209, 96656), (266, 75944), (304, 66451), (308, 65588), (418, 48328), (532, 37972), (616, 32794), (836, 24164), (863, 23408), (1064, 18986), (1232, 16397), (1463, 13808), (1672, 12082), (1726, 11704), (2128, 9493), (2926, 6904), (3344, 6041), (3452, 5852)]