20775460

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{10709}}^1$

素因数の和:10815

約数の個数: 24

約数和(自身を含む): 44082360

約数和(自身を除く): 23306900

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 10709, 21418, 42836, 53545, 107090, 214180, 1038773, 2077546, 4155092, 5193865, 10387730, 20775460]

約数ペア:

[(1, 20775460), (2, 10387730), (4, 5193865), (5, 4155092), (10, 2077546), (20, 1038773), (97, 214180), (194, 107090), (388, 53545), (485, 42836), (970, 21418), (1940, 10709)]