18507790

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{353}}^1$

素因数の和:481

約数の個数: 48

約数和(自身を含む): 39226032

約数和(自身を除く): 20718242

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 107, 214, 245, 353, 490, 535, 706, 749, 1070, 1498, 1765, 2471, 3530, 3745, 4942, 5243, 7490, 10486, 12355, 17297, 24710, 26215, 34594, 37771, 52430, 75542, 86485, 172970, 188855, 264397, 377710, 528794, 1321985, 1850779, 2643970, 3701558, 9253895, 18507790]

約数ペア:

[(1, 18507790), (2, 9253895), (5, 3701558), (7, 2643970), (10, 1850779), (14, 1321985), (35, 528794), (49, 377710), (70, 264397), (98, 188855), (107, 172970), (214, 86485), (245, 75542), (353, 52430), (490, 37771), (535, 34594), (706, 26215), (749, 24710), (1070, 17297), (1498, 12355), (1765, 10486), (2471, 7490), (3530, 5243), (3745, 4942)]