19925740

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{10271}}^1$

素因数の和:10377

約数の個数: 24

約数和(自身を含む): 42279552

約数和(自身を除く): 22353812

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 10271, 20542, 41084, 51355, 102710, 205420, 996287, 1992574, 3985148, 4981435, 9962870, 19925740]

約数ペア:

[(1, 19925740), (2, 9962870), (4, 4981435), (5, 3985148), (10, 1992574), (20, 996287), (97, 205420), (194, 102710), (388, 51355), (485, 41084), (970, 20542), (1940, 10271)]