1340628580

素因数分解:

$2^2\times 5^1\times {\mathrm{67031429}}^1$

素因数の和:67031438

約数の個数: 12

約数和(自身を含む): 2815320060

約数和(自身を除く): 1474691480

約数列:

[1, 2, 4, 5, 10, 20, 67031429, 134062858, 268125716, 335157145, 670314290, 1340628580]

約数ペア:

[(1, 1340628580), (2, 670314290), (4, 335157145), (5, 268125716), (10, 134062858), (20, 67031429)]