128670730

素因数分解:

$2^1\times 5^1\times {\mathrm{643}}^1\times {\mathrm{20011}}^1$

素因数の和:20661

約数の個数: 16

約数和(自身を含む): 231979104

約数和(自身を除く): 103308374

約数列:

[1, 2, 5, 10, 643, 1286, 3215, 6430, 20011, 40022, 100055, 200110, 12867073, 25734146, 64335365, 128670730]

約数ペア:

[(1, 128670730), (2, 64335365), (5, 25734146), (10, 12867073), (643, 200110), (1286, 100055), (3215, 40022), (6430, 20011)]