81132425

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{307}}^1$

素因数の和:390

約数の個数: 36

約数和(自身を含む): 113773968

約数和(自身を除く): 32641543

約数列:

[1, 5, 11, 25, 31, 55, 155, 275, 307, 341, 775, 961, 1535, 1705, 3377, 4805, 7675, 8525, 9517, 10571, 16885, 24025, 47585, 52855, 84425, 104687, 237925, 264275, 295027, 523435, 1475135, 2617175, 3245297, 7375675, 16226485, 81132425]

約数ペア:

[(1, 81132425), (5, 16226485), (11, 7375675), (25, 3245297), (31, 2617175), (55, 1475135), (155, 523435), (275, 295027), (307, 264275), (341, 237925), (775, 104687), (961, 84425), (1535, 52855), (1705, 47585), (3377, 24025), (4805, 16885), (7675, 10571), (8525, 9517)]