20479968005

素因数分解:

$5^1\times 7^1\times {\mathrm{15661}}^1\times {\mathrm{37363}}^1$

素因数の和:53036

約数の個数: 16

約数和(自身を含む): 28089358464

約数和(自身を除く): 7609390459

約数列:

[1, 5, 7, 35, 15661, 37363, 78305, 109627, 186815, 261541, 548135, 1307705, 585141943, 2925709715, 4095993601, 20479968005]

約数ペア:

[(1, 20479968005), (5, 4095993601), (7, 2925709715), (35, 585141943), (15661, 1307705), (37363, 548135), (78305, 261541), (109627, 186815)]