219025580

素因数分解:

$2^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{25409}}^1$

素因数の和:25849

約数の個数: 24

約数和(自身を含む): 461039040

約数和(自身を除く): 242013460

約数列:

[1, 2, 4, 5, 10, 20, 431, 862, 1724, 2155, 4310, 8620, 25409, 50818, 101636, 127045, 254090, 508180, 10951279, 21902558, 43805116, 54756395, 109512790, 219025580]

約数ペア:

[(1, 219025580), (2, 109512790), (4, 54756395), (5, 43805116), (10, 21902558), (20, 10951279), (431, 508180), (862, 254090), (1724, 127045), (2155, 101636), (4310, 50818), (8620, 25409)]