7781925

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:202

約数の個数: 48

約数和(自身を含む): 13967360

約数和(自身を除く): 6185435

約数列:

[1, 3, 5, 15, 19, 25, 43, 57, 75, 95, 127, 129, 215, 285, 381, 475, 635, 645, 817, 1075, 1425, 1905, 2413, 2451, 3175, 3225, 4085, 5461, 7239, 9525, 12065, 12255, 16383, 20425, 27305, 36195, 60325, 61275, 81915, 103759, 136525, 180975, 311277, 409575, 518795, 1556385, 2593975, 7781925]

約数ペア:

[(1, 7781925), (3, 2593975), (5, 1556385), (15, 518795), (19, 409575), (25, 311277), (43, 180975), (57, 136525), (75, 103759), (95, 81915), (127, 61275), (129, 60325), (215, 36195), (285, 27305), (381, 20425), (475, 16383), (635, 12255), (645, 12065), (817, 9525), (1075, 7239), (1425, 5461), (1905, 4085), (2413, 3225), (2451, 3175)]