12391225

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:226

約数の個数: 48

約数和(自身を含む): 19748736

約数和(自身を除く): 7357511

約数列:

[1, 5, 7, 11, 25, 35, 41, 55, 77, 157, 175, 205, 275, 287, 385, 451, 785, 1025, 1099, 1435, 1727, 1925, 2255, 3157, 3925, 5495, 6437, 7175, 8635, 11275, 12089, 15785, 27475, 32185, 43175, 45059, 60445, 70807, 78925, 160925, 225295, 302225, 354035, 495649, 1126475, 1770175, 2478245, 12391225]

約数ペア:

[(1, 12391225), (5, 2478245), (7, 1770175), (11, 1126475), (25, 495649), (35, 354035), (41, 302225), (55, 225295), (77, 160925), (157, 78925), (175, 70807), (205, 60445), (275, 45059), (287, 43175), (385, 32185), (451, 27475), (785, 15785), (1025, 12089), (1099, 11275), (1435, 8635), (1727, 7175), (1925, 6437), (2255, 5495), (3157, 3925)]