208218815

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1\times {\mathrm{887}}^1$

素因数の和:1271

約数の個数: 32

約数和(自身を含む): 301777920

約数和(自身を除く): 93559105

約数列:

[1, 5, 7, 19, 35, 95, 133, 353, 665, 887, 1765, 2471, 4435, 6209, 6707, 12355, 16853, 31045, 33535, 46949, 84265, 117971, 234745, 313111, 589855, 1565555, 2191777, 5949109, 10958885, 29745545, 41643763, 208218815]

約数ペア:

[(1, 208218815), (5, 41643763), (7, 29745545), (19, 10958885), (35, 5949109), (95, 2191777), (133, 1565555), (353, 589855), (665, 313111), (887, 234745), (1765, 117971), (2471, 84265), (4435, 46949), (6209, 33535), (6707, 31045), (12355, 16853)]