1645940540

素因数分解:

$2^2\times 5^1\times {\mathrm{82297027}}^1$

素因数の和:82297036

約数の個数: 12

約数和(自身を含む): 3456475176

約数和(自身を除く): 1810534636

約数列:

[1, 2, 4, 5, 10, 20, 82297027, 164594054, 329188108, 411485135, 822970270, 1645940540]

約数ペア:

[(1, 1645940540), (2, 822970270), (4, 411485135), (5, 329188108), (10, 164594054), (20, 82297027)]