64745487

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{641}}^1$

素因数の和:725

約数の個数: 40

約数和(自身を含む): 102540240

約数和(自身を除く): 37794753

約数列:

[1, 3, 9, 27, 29, 43, 81, 87, 129, 261, 387, 641, 783, 1161, 1247, 1923, 2349, 3483, 3741, 5769, 11223, 17307, 18589, 27563, 33669, 51921, 55767, 82689, 101007, 167301, 248067, 501903, 744201, 799327, 1505709, 2232603, 2397981, 7193943, 21581829, 64745487]

約数ペア:

[(1, 64745487), (3, 21581829), (9, 7193943), (27, 2397981), (29, 2232603), (43, 1505709), (81, 799327), (87, 744201), (129, 501903), (261, 248067), (387, 167301), (641, 101007), (783, 82689), (1161, 55767), (1247, 51921), (1923, 33669), (2349, 27563), (3483, 18589), (3741, 17307), (5769, 11223)]