81562768

素因数分解:

$2^4\times 7^1\times {\mathrm{353}}^1\times {\mathrm{2063}}^1$

素因数の和:2431

約数の個数: 40

約数和(自身を含む): 181202688

約数和(自身を除く): 99639920

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 353, 706, 1412, 2063, 2471, 2824, 4126, 4942, 5648, 8252, 9884, 14441, 16504, 19768, 28882, 33008, 39536, 57764, 115528, 231056, 728239, 1456478, 2912956, 5097673, 5825912, 10195346, 11651824, 20390692, 40781384, 81562768]

約数ペア:

[(1, 81562768), (2, 40781384), (4, 20390692), (7, 11651824), (8, 10195346), (14, 5825912), (16, 5097673), (28, 2912956), (56, 1456478), (112, 728239), (353, 231056), (706, 115528), (1412, 57764), (2063, 39536), (2471, 33008), (2824, 28882), (4126, 19768), (4942, 16504), (5648, 14441), (8252, 9884)]