201020200

素因数分解:

$2^3\times 5^2\times {\mathrm{1005101}}^1$

素因数の和:1005117

約数の個数: 24

約数和(自身を含む): 467372430

約数和(自身を除く): 266352230

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 1005101, 2010202, 4020404, 5025505, 8040808, 10051010, 20102020, 25127525, 40204040, 50255050, 100510100, 201020200]

約数ペア:

[(1, 201020200), (2, 100510100), (4, 50255050), (5, 40204040), (8, 25127525), (10, 20102020), (20, 10051010), (25, 8040808), (40, 5025505), (50, 4020404), (100, 2010202), (200, 1005101)]