28128665

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{3191}}^1$

素因数の和:3280

約数の個数: 16

約数和(自身を含む): 35392896

約数和(自身を除く): 7264231

約数列:

[1, 5, 41, 43, 205, 215, 1763, 3191, 8815, 15955, 130831, 137213, 654155, 686065, 5625733, 28128665]

約数ペア:

[(1, 28128665), (5, 5625733), (41, 686065), (43, 654155), (205, 137213), (215, 130831), (1763, 15955), (3191, 8815)]