28380703.000000000

素因数分解:

$2^2\times {\mathrm{31}}^2\times {\mathrm{61}}^1\times {\mathrm{563}}^1$

素因数の和:690

約数の個数: 36

約数和(自身を含む): 243062568

約数和(自身を除く): 111048076

約数列:

[1, 2, 4, 31, 61, 62, 122, 124, 244, 563, 961, 1126, 1891, 1922, 2252, 3782, 3844, 7564, 17453, 34343, 34906, 58621, 68686, 69812, 117242, 137372, 234484, 541043, 1064633, 1082086, 2129266, 2164172, 4258532, 33003623, 66007246, 132014492]

約数ペア:

[(1, 132014492), (2, 66007246), (4, 33003623), (31, 4258532), (61, 2164172), (62, 2129266), (122, 1082086), (124, 1064633), (244, 541043), (563, 234484), (961, 137372), (1126, 117242), (1891, 69812), (1922, 68686), (2252, 58621), (3782, 34906), (3844, 34343), (7564, 17453)]