20103280

素因数分解:

$2^4\times 5^1\times {\mathrm{251291}}^1$

素因数の和:251304

約数の個数: 20

約数和(自身を含む): 46740312

約数和(自身を除く): 26637032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251291, 502582, 1005164, 1256455, 2010328, 2512910, 4020656, 5025820, 10051640, 20103280]

約数ペア:

[(1, 20103280), (2, 10051640), (4, 5025820), (5, 4020656), (8, 2512910), (10, 2010328), (16, 1256455), (20, 1005164), (40, 502582), (80, 251291)]