12712005

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1$

素因数の和:251

約数の個数: 64

約数和(自身を含む): 24883200

約数和(自身を除く): 12171195

約数列:

[1, 3, 5, 9, 15, 17, 27, 29, 45, 51, 85, 87, 135, 145, 153, 191, 255, 261, 435, 459, 493, 573, 765, 783, 955, 1305, 1479, 1719, 2295, 2465, 2865, 3247, 3915, 4437, 5157, 5539, 7395, 8595, 9741, 13311, 16235, 16617, 22185, 25785, 27695, 29223, 48705, 49851, 66555, 83085, 87669, 94163, 146115, 149553, 249255, 282489, 438345, 470815, 747765, 847467, 1412445, 2542401, 4237335, 12712005]

約数ペア:

[(1, 12712005), (3, 4237335), (5, 2542401), (9, 1412445), (15, 847467), (17, 747765), (27, 470815), (29, 438345), (45, 282489), (51, 249255), (85, 149553), (87, 146115), (135, 94163), (145, 87669), (153, 83085), (191, 66555), (255, 49851), (261, 48705), (435, 29223), (459, 27695), (493, 25785), (573, 22185), (765, 16617), (783, 16235), (955, 13311), (1305, 9741), (1479, 8595), (1719, 7395), (2295, 5539), (2465, 5157), (2865, 4437), (3247, 3915)]