20464555

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{503}}^1$

素因数の和:690

約数の個数: 16

約数和(自身を含む): 25159680

約数和(自身を除く): 4695125

約数列:

[1, 5, 79, 103, 395, 503, 515, 2515, 8137, 39737, 40685, 51809, 198685, 259045, 4092911, 20464555]

約数ペア:

[(1, 20464555), (5, 4092911), (79, 259045), (103, 198685), (395, 51809), (503, 40685), (515, 39737), (2515, 8137)]