1278432818

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{761}}^1\times {\mathrm{64613}}^1$

素因数の和:65389

約数の個数: 16

約数和(自身を含む): 2067906456

約数和(自身を除く): 789473638

約数列:

[1, 2, 13, 26, 761, 1522, 9893, 19786, 64613, 129226, 839969, 1679938, 49170493, 98340986, 639216409, 1278432818]

約数ペア:

[(1, 1278432818), (2, 639216409), (13, 98340986), (26, 49170493), (761, 1679938), (1522, 839969), (9893, 129226), (19786, 64613)]