190020980

素因数分解:

$2^2\times 5^1\times {\mathrm{9501049}}^1$

素因数の和:9501058

約数の個数: 12

約数和(自身を含む): 399044100

約数和(自身を除く): 209023120

約数列:

[1, 2, 4, 5, 10, 20, 9501049, 19002098, 38004196, 47505245, 95010490, 190020980]

約数ペア:

[(1, 190020980), (2, 95010490), (4, 47505245), (5, 38004196), (10, 19002098), (20, 9501049)]