20107256

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{487}}^1$

素因数の和:903

約数の個数: 32

約数和(自身を含む): 40787040

約数和(自身を除く): 20679784

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 397, 487, 794, 974, 1588, 1948, 3176, 3896, 5161, 6331, 10322, 12662, 20644, 25324, 41288, 50648, 193339, 386678, 773356, 1546712, 2513407, 5026814, 10053628, 20107256]

約数ペア:

[(1, 20107256), (2, 10053628), (4, 5026814), (8, 2513407), (13, 1546712), (26, 773356), (52, 386678), (104, 193339), (397, 50648), (487, 41288), (794, 25324), (974, 20644), (1588, 12662), (1948, 10322), (3176, 6331), (3896, 5161)]