219805640

素因数分解:

$2^3\times 5^1\times {\mathrm{5495141}}^1$

素因数の和:5495152

約数の個数: 16

約数和(自身を含む): 494562780

約数和(自身を除く): 274757140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5495141, 10990282, 21980564, 27475705, 43961128, 54951410, 109902820, 219805640]

約数ペア:

[(1, 219805640), (2, 109902820), (4, 54951410), (5, 43961128), (8, 27475705), (10, 21980564), (20, 10990282), (40, 5495141)]