18028045180

素因数分解:

$2^2\times 5^1\times {\mathrm{901402259}}^1$

素因数の和:901402268

約数の個数: 12

約数和(自身を含む): 37858894920

約数和(自身を除く): 19830849740

約数列:

[1, 2, 4, 5, 10, 20, 901402259, 1802804518, 3605609036, 4507011295, 9014022590, 18028045180]

約数ペア:

[(1, 18028045180), (2, 9014022590), (4, 4507011295), (5, 3605609036), (10, 1802804518), (20, 901402259)]