205206520

素因数分解:

$2^3\times 5^1\times {\mathrm{5130163}}^1$

素因数の和:5130174

約数の個数: 16

約数和(自身を含む): 461714760

約数和(自身を除く): 256508240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5130163, 10260326, 20520652, 25650815, 41041304, 51301630, 102603260, 205206520]

約数ペア:

[(1, 205206520), (2, 102603260), (4, 51301630), (5, 41041304), (8, 25650815), (10, 20520652), (20, 10260326), (40, 5130163)]