2050420

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{653}}^1$

素因数の和:819

約数の個数: 24

約数和(自身を含む): 4339944

約数和(自身を除く): 2289524

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 653, 785, 1306, 1570, 2612, 3140, 3265, 6530, 13060, 102521, 205042, 410084, 512605, 1025210, 2050420]

約数ペア:

[(1, 2050420), (2, 1025210), (4, 512605), (5, 410084), (10, 205042), (20, 102521), (157, 13060), (314, 6530), (628, 3265), (653, 3140), (785, 2612), (1306, 1570)]