1665915

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:211

約数の個数: 32

約数和(自身を含む): 2903040

約数和(自身を除く): 1237125

約数列:

[1, 3, 5, 15, 17, 47, 51, 85, 139, 141, 235, 255, 417, 695, 705, 799, 2085, 2363, 2397, 3995, 6533, 7089, 11815, 11985, 19599, 32665, 35445, 97995, 111061, 333183, 555305, 1665915]

約数ペア:

[(1, 1665915), (3, 555305), (5, 333183), (15, 111061), (17, 97995), (47, 35445), (51, 32665), (85, 19599), (139, 11985), (141, 11815), (235, 7089), (255, 6533), (417, 3995), (695, 2397), (705, 2363), (799, 2085)]