201009025

素因数分解:

$5^2\times 7^2\times {\mathrm{164089}}^1$

素因数の和:164113

約数の個数: 18

約数和(自身を含む): 289947030

約数和(自身を除く): 88938005

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 1225, 164089, 820445, 1148623, 4102225, 5743115, 8040361, 28715575, 40201805, 201009025]

約数ペア:

[(1, 201009025), (5, 40201805), (7, 28715575), (25, 8040361), (35, 5743115), (49, 4102225), (175, 1148623), (245, 820445), (1225, 164089)]