28228165

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^2\times {\mathrm{137}}^1$

素因数の和:214

約数の個数: 36

約数和(自身を含む): 41107716

約数和(自身を除く): 12879551

約数列:

[1, 5, 7, 29, 35, 49, 137, 145, 203, 245, 685, 841, 959, 1015, 1421, 3973, 4205, 4795, 5887, 6713, 7105, 19865, 27811, 29435, 33565, 41209, 115217, 139055, 194677, 206045, 576085, 806519, 973385, 4032595, 5645633, 28228165]

約数ペア:

[(1, 28228165), (5, 5645633), (7, 4032595), (29, 973385), (35, 806519), (49, 576085), (137, 206045), (145, 194677), (203, 139055), (245, 115217), (685, 41209), (841, 33565), (959, 29435), (1015, 27811), (1421, 19865), (3973, 7105), (4205, 6713), (4795, 5887)]