31112080

素因数分解:

$2^4\times 5^1\times {\mathrm{388901}}^1$

素因数の和:388914

約数の個数: 20

約数和(自身を含む): 72335772

約数和(自身を除く): 41223692

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 388901, 777802, 1555604, 1944505, 3111208, 3889010, 6222416, 7778020, 15556040, 31112080]

約数ペア:

[(1, 31112080), (2, 15556040), (4, 7778020), (5, 6222416), (8, 3889010), (10, 3111208), (16, 1944505), (20, 1555604), (40, 777802), (80, 388901)]