16720784

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:479

約数の個数: 40

約数和(自身を含む): 33747840

約数和(自身を除く): 17027056

約数列:

[1, 2, 4, 8, 16, 41, 71, 82, 142, 164, 284, 328, 359, 568, 656, 718, 1136, 1436, 2872, 2911, 5744, 5822, 11644, 14719, 23288, 25489, 29438, 46576, 50978, 58876, 101956, 117752, 203912, 235504, 407824, 1045049, 2090098, 4180196, 8360392, 16720784]

約数ペア:

[(1, 16720784), (2, 8360392), (4, 4180196), (8, 2090098), (16, 1045049), (41, 407824), (71, 235504), (82, 203912), (142, 117752), (164, 101956), (284, 58876), (328, 50978), (359, 46576), (568, 29438), (656, 25489), (718, 23288), (1136, 14719), (1436, 11644), (2872, 5822), (2911, 5744)]