8045162420

素因数分解:

$2^2\times 5^1\times {\mathrm{402258121}}^1$

素因数の和:402258130

約数の個数: 12

約数和(自身を含む): 16894841124

約数和(自身を除く): 8849678704

約数列:

[1, 2, 4, 5, 10, 20, 402258121, 804516242, 1609032484, 2011290605, 4022581210, 8045162420]

約数ペア:

[(1, 8045162420), (2, 4022581210), (4, 2011290605), (5, 1609032484), (10, 804516242), (20, 402258121)]