128678145

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{199501}}^1$

素因数の和:199552

約数の個数: 16

約数和(自身を含む): 210674112

約数和(自身を除く): 81995967

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 199501, 598503, 997505, 2992515, 8578543, 25735629, 42892715, 128678145]

約数ペア:

[(1, 128678145), (3, 42892715), (5, 25735629), (15, 8578543), (43, 2992515), (129, 997505), (215, 598503), (645, 199501)]