18272860

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{9419}}^1$

素因数の和:9525

約数の個数: 24

約数和(自身を含む): 38772720

約数和(自身を除く): 20499860

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 9419, 18838, 37676, 47095, 94190, 188380, 913643, 1827286, 3654572, 4568215, 9136430, 18272860]

約数ペア:

[(1, 18272860), (2, 9136430), (4, 4568215), (5, 3654572), (10, 1827286), (20, 913643), (97, 188380), (194, 94190), (388, 47095), (485, 37676), (970, 18838), (1940, 9419)]