1289064080

素因数分解:

$2^4\times 5^1\times {\mathrm{16113301}}^1$

素因数の和:16113314

約数の個数: 20

約数和(自身を含む): 2997074172

約数和(自身を除く): 1708010092

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 16113301, 32226602, 64453204, 80566505, 128906408, 161133010, 257812816, 322266020, 644532040, 1289064080]

約数ペア:

[(1, 1289064080), (2, 644532040), (4, 322266020), (5, 257812816), (8, 161133010), (10, 128906408), (16, 80566505), (20, 64453204), (40, 32226602), (80, 16113301)]