145420225

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{187639}}^1$

素因数の和:187680

約数の個数: 12

約数和(自身を含む): 186138880

約数和(自身を除く): 40718655

約数列:

[1, 5, 25, 31, 155, 775, 187639, 938195, 4690975, 5816809, 29084045, 145420225]

約数ペア:

[(1, 145420225), (5, 29084045), (25, 5816809), (31, 4690975), (155, 938195), (775, 187639)]