204886520

素因数分解:

$2^3\times 5^1\times {\mathrm{5122163}}^1$

素因数の和:5122174

約数の個数: 16

約数和(自身を含む): 460994760

約数和(自身を除く): 256108240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5122163, 10244326, 20488652, 25610815, 40977304, 51221630, 102443260, 204886520]

約数ペア:

[(1, 204886520), (2, 102443260), (4, 51221630), (5, 40977304), (8, 25610815), (10, 20488652), (20, 10244326), (40, 5122163)]