87789772

素因数分解:

$2^2\times 7^2\times {\mathrm{447907}}^1$

素因数の和:447925

約数の個数: 18

約数和(自身を含む): 178715292

約数和(自身を除く): 90925520

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 447907, 895814, 1791628, 3135349, 6270698, 12541396, 21947443, 43894886, 87789772]

約数ペア:

[(1, 87789772), (2, 43894886), (4, 21947443), (7, 12541396), (14, 6270698), (28, 3135349), (49, 1791628), (98, 895814), (196, 447907)]