221440420

素因数分解:

$2^2\times 5^1\times {\mathrm{1097}}^1\times {\mathrm{10093}}^1$

素因数の和:11199

約数の個数: 24

約数和(自身を含む): 465494904

約数和(自身を除く): 244054484

約数列:

[1, 2, 4, 5, 10, 20, 1097, 2194, 4388, 5485, 10093, 10970, 20186, 21940, 40372, 50465, 100930, 201860, 11072021, 22144042, 44288084, 55360105, 110720210, 221440420]

約数ペア:

[(1, 221440420), (2, 110720210), (4, 55360105), (5, 44288084), (10, 22144042), (20, 11072021), (1097, 201860), (2194, 100930), (4388, 50465), (5485, 40372), (10093, 21940), (10970, 20186)]