20691310

素因数分解:

$2^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{5059}}^1$

素因数の和:5475

約数の個数: 16

約数和(自身を含む): 37342800

約数和(自身を除く): 16651490

約数列:

[1, 2, 5, 10, 409, 818, 2045, 4090, 5059, 10118, 25295, 50590, 2069131, 4138262, 10345655, 20691310]

約数ペア:

[(1, 20691310), (2, 10345655), (5, 4138262), (10, 2069131), (409, 50590), (818, 25295), (2045, 10118), (4090, 5059)]