20560288

素因数分解:

$2^5\times 7^1\times {\mathrm{263}}^1\times {\mathrm{349}}^1$

素因数の和:629

約数の個数: 48

約数和(自身を含む): 46569600

約数和(自身を除く): 26009312

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 263, 349, 526, 698, 1052, 1396, 1841, 2104, 2443, 2792, 3682, 4208, 4886, 5584, 7364, 8416, 9772, 11168, 14728, 19544, 29456, 39088, 58912, 78176, 91787, 183574, 367148, 642509, 734296, 1285018, 1468592, 2570036, 2937184, 5140072, 10280144, 20560288]

約数ペア:

[(1, 20560288), (2, 10280144), (4, 5140072), (7, 2937184), (8, 2570036), (14, 1468592), (16, 1285018), (28, 734296), (32, 642509), (56, 367148), (112, 183574), (224, 91787), (263, 78176), (349, 58912), (526, 39088), (698, 29456), (1052, 19544), (1396, 14728), (1841, 11168), (2104, 9772), (2443, 8416), (2792, 7364), (3682, 5584), (4208, 4886)]