20289008

素因数分解:

$2^4\times {\mathrm{503}}^1\times {\mathrm{2521}}^1$

素因数の和:3032

約数の個数: 20

約数和(自身を含む): 39403728

約数和(自身を除く): 19114720

約数列:

[1, 2, 4, 8, 16, 503, 1006, 2012, 2521, 4024, 5042, 8048, 10084, 20168, 40336, 1268063, 2536126, 5072252, 10144504, 20289008]

約数ペア:

[(1, 20289008), (2, 10144504), (4, 5072252), (8, 2536126), (16, 1268063), (503, 40336), (1006, 20168), (2012, 10084), (2521, 8048), (4024, 5042)]