20178039308

素因数分解:

$2^2\times 7^1\times {\mathrm{720644261}}^1$

素因数の和:720644272

約数の個数: 12

約数和(自身を含む): 40356078672

約数和(自身を除く): 20178039364

約数列:

[1, 2, 4, 7, 14, 28, 720644261, 1441288522, 2882577044, 5044509827, 10089019654, 20178039308]

約数ペア:

[(1, 20178039308), (2, 10089019654), (4, 5044509827), (7, 2882577044), (14, 1441288522), (28, 720644261)]