123156945

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{63647}}^1$

素因数の和:63701

約数の個数: 24

約数和(自身を含む): 218439936

約数和(自身を除く): 95282991

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 63647, 190941, 318235, 572823, 954705, 2736821, 2864115, 8210463, 13684105, 24631389, 41052315, 123156945]

約数ペア:

[(1, 123156945), (3, 41052315), (5, 24631389), (9, 13684105), (15, 8210463), (43, 2864115), (45, 2736821), (129, 954705), (215, 572823), (387, 318235), (645, 190941), (1935, 63647)]