20901152

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:313

約数の個数: 48

約数和(自身を含む): 42900480

約数和(自身を除く): 21999328

約数列:

[1, 2, 4, 8, 16, 32, 37, 74, 127, 139, 148, 254, 278, 296, 508, 556, 592, 1016, 1112, 1184, 2032, 2224, 4064, 4448, 4699, 5143, 9398, 10286, 17653, 18796, 20572, 35306, 37592, 41144, 70612, 75184, 82288, 141224, 150368, 164576, 282448, 564896, 653161, 1306322, 2612644, 5225288, 10450576, 20901152]

約数ペア:

[(1, 20901152), (2, 10450576), (4, 5225288), (8, 2612644), (16, 1306322), (32, 653161), (37, 564896), (74, 282448), (127, 164576), (139, 150368), (148, 141224), (254, 82288), (278, 75184), (296, 70612), (508, 41144), (556, 37592), (592, 35306), (1016, 20572), (1112, 18796), (1184, 17653), (2032, 10286), (2224, 9398), (4064, 5143), (4448, 4699)]