20178880036

素因数分解:

$2^2\times 7^1\times {\mathrm{720674287}}^1$

素因数の和:720674298

約数の個数: 12

約数和(自身を含む): 40357760128

約数和(自身を除く): 20178880092

約数列:

[1, 2, 4, 7, 14, 28, 720674287, 1441348574, 2882697148, 5044720009, 10089440018, 20178880036]

約数ペア:

[(1, 20178880036), (2, 10089440018), (4, 5044720009), (7, 2882697148), (14, 1441348574), (28, 720674287)]