28959260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{947}}^1$

素因数の和:1106

約数の個数: 48

約数和(自身を含む): 66890880

約数和(自身を除く): 37931620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 139, 220, 278, 556, 695, 947, 1390, 1529, 1894, 2780, 3058, 3788, 4735, 6116, 7645, 9470, 10417, 15290, 18940, 20834, 30580, 41668, 52085, 104170, 131633, 208340, 263266, 526532, 658165, 1316330, 1447963, 2632660, 2895926, 5791852, 7239815, 14479630, 28959260]

約数ペア:

[(1, 28959260), (2, 14479630), (4, 7239815), (5, 5791852), (10, 2895926), (11, 2632660), (20, 1447963), (22, 1316330), (44, 658165), (55, 526532), (110, 263266), (139, 208340), (220, 131633), (278, 104170), (556, 52085), (695, 41668), (947, 30580), (1390, 20834), (1529, 18940), (1894, 15290), (2780, 10417), (3058, 9470), (3788, 7645), (4735, 6116)]