20830755

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{499}}^1$

素因数の和:552

約数の個数: 48

約数和(自身を含む): 38304000

約数和(自身を除く): 17473245

約数列:

[1, 3, 5, 11, 15, 23, 33, 55, 69, 115, 121, 165, 253, 345, 363, 499, 605, 759, 1265, 1497, 1815, 2495, 2783, 3795, 5489, 7485, 8349, 11477, 13915, 16467, 27445, 34431, 41745, 57385, 60379, 82335, 126247, 172155, 181137, 301895, 378741, 631235, 905685, 1388717, 1893705, 4166151, 6943585, 20830755]

約数ペア:

[(1, 20830755), (3, 6943585), (5, 4166151), (11, 1893705), (15, 1388717), (23, 905685), (33, 631235), (55, 378741), (69, 301895), (115, 181137), (121, 172155), (165, 126247), (253, 82335), (345, 60379), (363, 57385), (499, 41745), (605, 34431), (759, 27445), (1265, 16467), (1497, 13915), (1815, 11477), (2495, 8349), (2783, 7485), (3795, 5489)]