80456508620

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{9835759}}^1$

素因数の和:9836177

約数の個数: 24

約数和(自身を含む): 169371787200

約数和(自身を除く): 88915278580

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8180, 9835759, 19671518, 39343036, 49178795, 98357590, 196715180, 4022825431, 8045650862, 16091301724, 20114127155, 40228254310, 80456508620]

約数ペア:

[(1, 80456508620), (2, 40228254310), (4, 20114127155), (5, 16091301724), (10, 8045650862), (20, 4022825431), (409, 196715180), (818, 98357590), (1636, 49178795), (2045, 39343036), (4090, 19671518), (8180, 9835759)]