220516720

素因数分解:

$2^4\times 5^1\times {\mathrm{2756459}}^1$

素因数の和:2756472

約数の個数: 20

約数和(自身を含む): 512701560

約数和(自身を除く): 292184840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2756459, 5512918, 11025836, 13782295, 22051672, 27564590, 44103344, 55129180, 110258360, 220516720]

約数ペア:

[(1, 220516720), (2, 110258360), (4, 55129180), (5, 44103344), (8, 27564590), (10, 22051672), (16, 13782295), (20, 11025836), (40, 5512918), (80, 2756459)]