208400715

素因数分解:

$3^3\times 5^1\times {\mathrm{1543709}}^1$

素因数の和:1543723

約数の個数: 16

約数和(自身を含む): 370490400

約数和(自身を除く): 162089685

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1543709, 4631127, 7718545, 13893381, 23155635, 41680143, 69466905, 208400715]

約数ペア:

[(1, 208400715), (3, 69466905), (5, 41680143), (9, 23155635), (15, 13893381), (27, 7718545), (45, 4631127), (135, 1543709)]