20126128

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{661}}^1$

素因数の和:853

約数の個数: 40

約数和(自身を含む): 42849936

約数和(自身を除く): 22723808

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 173, 176, 346, 661, 692, 1322, 1384, 1903, 2644, 2768, 3806, 5288, 7271, 7612, 10576, 14542, 15224, 29084, 30448, 58168, 114353, 116336, 228706, 457412, 914824, 1257883, 1829648, 2515766, 5031532, 10063064, 20126128]

約数ペア:

[(1, 20126128), (2, 10063064), (4, 5031532), (8, 2515766), (11, 1829648), (16, 1257883), (22, 914824), (44, 457412), (88, 228706), (173, 116336), (176, 114353), (346, 58168), (661, 30448), (692, 29084), (1322, 15224), (1384, 14542), (1903, 10576), (2644, 7612), (2768, 7271), (3806, 5288)]