20702920595

素因数分解:

$5^1\times 7^1\times {\mathrm{1987}}^1\times {\mathrm{297691}}^1$

素因数の和:299690

約数の個数: 16

約数和(自身を含む): 28406961408

約数和(自身を除く): 7704040813

約数列:

[1, 5, 7, 35, 1987, 9935, 13909, 69545, 297691, 1488455, 2083837, 10419185, 591512017, 2957560085, 4140584119, 20702920595]

約数ペア:

[(1, 20702920595), (5, 4140584119), (7, 2957560085), (35, 591512017), (1987, 10419185), (9935, 2083837), (13909, 1488455), (69545, 297691)]