28215640

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{8929}}^1$

素因数の和:9019

約数の個数: 32

約数和(自身を含む): 64296000

約数和(自身を除く): 36080360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 8929, 17858, 35716, 44645, 71432, 89290, 178580, 357160, 705391, 1410782, 2821564, 3526955, 5643128, 7053910, 14107820, 28215640]

約数ペア:

[(1, 28215640), (2, 14107820), (4, 7053910), (5, 5643128), (8, 3526955), (10, 2821564), (20, 1410782), (40, 705391), (79, 357160), (158, 178580), (316, 89290), (395, 71432), (632, 44645), (790, 35716), (1580, 17858), (3160, 8929)]