20045560

素因数分解:

$2^3\times 5^1\times {\mathrm{501139}}^1$

素因数の和:501150

約数の個数: 16

約数和(自身を含む): 45102600

約数和(自身を除く): 25057040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 501139, 1002278, 2004556, 2505695, 4009112, 5011390, 10022780, 20045560]

約数ペア:

[(1, 20045560), (2, 10022780), (4, 5011390), (5, 4009112), (8, 2505695), (10, 2004556), (20, 1002278), (40, 501139)]