12780985

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{15877}}^1$

素因数の和:15912

約数の個数: 16

約数和(自身を含む): 18291456

約数和(自身を除く): 5510471

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 15877, 79385, 111139, 365171, 555695, 1825855, 2556197, 12780985]

約数ペア:

[(1, 12780985), (5, 2556197), (7, 1825855), (23, 555695), (35, 365171), (115, 111139), (161, 79385), (805, 15877)]