180561040180

素因数分解:

$2^2\times 5^1\times {\mathrm{9028052009}}^1$

素因数の和:9028052018

約数の個数: 12

約数和(自身を含む): 379178184420

約数和(自身を除く): 198617144240

約数列:

[1, 2, 4, 5, 10, 20, 9028052009, 18056104018, 36112208036, 45140260045, 90280520090, 180561040180]

約数ペア:

[(1, 180561040180), (2, 90280520090), (4, 45140260045), (5, 36112208036), (10, 18056104018), (20, 9028052009)]