889019870

素因数分解:

$2^1\times 5^1\times {\mathrm{691}}^1\times {\mathrm{128657}}^1$

素因数の和:129355

約数の個数: 16

約数和(自身を含む): 1602564048

約数和(自身を除く): 713544178

約数列:

[1, 2, 5, 10, 691, 1382, 3455, 6910, 128657, 257314, 643285, 1286570, 88901987, 177803974, 444509935, 889019870]

約数ペア:

[(1, 889019870), (2, 444509935), (5, 177803974), (10, 88901987), (691, 1286570), (1382, 643285), (3455, 257314), (6910, 128657)]