81988225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{443}}^1\times {\mathrm{673}}^1$

素因数の和:1137

約数の個数: 24

約数和(自身を含む): 111323232

約数和(自身を除く): 29335007

約数列:

[1, 5, 11, 25, 55, 275, 443, 673, 2215, 3365, 4873, 7403, 11075, 16825, 24365, 37015, 121825, 185075, 298139, 1490695, 3279529, 7453475, 16397645, 81988225]

約数ペア:

[(1, 81988225), (5, 16397645), (11, 7453475), (25, 3279529), (55, 1490695), (275, 298139), (443, 185075), (673, 121825), (2215, 37015), (3365, 24365), (4873, 16825), (7403, 11075)]