1380344

素因数分解:

$2^3\times 7^1\times {\mathrm{157}}^2$

素因数の和:327

約数の個数: 24

約数和(自身を含む): 2976840

約数和(自身を除く): 1596496

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 157, 314, 628, 1099, 1256, 2198, 4396, 8792, 24649, 49298, 98596, 172543, 197192, 345086, 690172, 1380344]

約数ペア:

[(1, 1380344), (2, 690172), (4, 345086), (7, 197192), (8, 172543), (14, 98596), (28, 49298), (56, 24649), (157, 8792), (314, 4396), (628, 2198), (1099, 1256)]