87117820

素因数分解:

$2^2\times 5^1\times {\mathrm{347}}^1\times {\mathrm{12553}}^1$

素因数の和:12909

約数の個数: 24

約数和(自身を含む): 183489264

約数和(自身を除く): 96371444

約数列:

[1, 2, 4, 5, 10, 20, 347, 694, 1388, 1735, 3470, 6940, 12553, 25106, 50212, 62765, 125530, 251060, 4355891, 8711782, 17423564, 21779455, 43558910, 87117820]

約数ペア:

[(1, 87117820), (2, 43558910), (4, 21779455), (5, 17423564), (10, 8711782), (20, 4355891), (347, 251060), (694, 125530), (1388, 62765), (1735, 50212), (3470, 25106), (6940, 12553)]