20580224

素因数分解:

$2^7\times 7^1\times {\mathrm{103}}^1\times {\mathrm{223}}^1$

素因数の和:347

約数の個数: 64

約数和(自身を含む): 47523840

約数和(自身を除く): 26943616

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 103, 112, 128, 206, 223, 224, 412, 446, 448, 721, 824, 892, 896, 1442, 1561, 1648, 1784, 2884, 3122, 3296, 3568, 5768, 6244, 6592, 7136, 11536, 12488, 13184, 14272, 22969, 23072, 24976, 28544, 45938, 46144, 49952, 91876, 92288, 99904, 160783, 183752, 199808, 321566, 367504, 643132, 735008, 1286264, 1470016, 2572528, 2940032, 5145056, 10290112, 20580224]

約数ペア:

[(1, 20580224), (2, 10290112), (4, 5145056), (7, 2940032), (8, 2572528), (14, 1470016), (16, 1286264), (28, 735008), (32, 643132), (56, 367504), (64, 321566), (103, 199808), (112, 183752), (128, 160783), (206, 99904), (223, 92288), (224, 91876), (412, 49952), (446, 46144), (448, 45938), (721, 28544), (824, 24976), (892, 23072), (896, 22969), (1442, 14272), (1561, 13184), (1648, 12488), (1784, 11536), (2884, 7136), (3122, 6592), (3296, 6244), (3568, 5768)]