28682225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 42747264

約数和(自身を除く): 14065039

約数列:

[1, 5, 11, 13, 25, 55, 65, 71, 113, 143, 275, 325, 355, 565, 715, 781, 923, 1243, 1469, 1775, 2825, 3575, 3905, 4615, 6215, 7345, 8023, 10153, 16159, 19525, 23075, 31075, 36725, 40115, 50765, 80795, 88253, 104299, 200575, 253825, 403975, 441265, 521495, 1147289, 2206325, 2607475, 5736445, 28682225]

約数ペア:

[(1, 28682225), (5, 5736445), (11, 2607475), (13, 2206325), (25, 1147289), (55, 521495), (65, 441265), (71, 403975), (113, 253825), (143, 200575), (275, 104299), (325, 88253), (355, 80795), (565, 50765), (715, 40115), (781, 36725), (923, 31075), (1243, 23075), (1469, 19525), (1775, 16159), (2825, 10153), (3575, 8023), (3905, 7345), (4615, 6215)]