80188540

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{9803}}^1$

素因数の和:10221

約数の個数: 24

約数和(自身を含む): 168824880

約数和(自身を除く): 88636340

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8180, 9803, 19606, 39212, 49015, 98030, 196060, 4009427, 8018854, 16037708, 20047135, 40094270, 80188540]

約数ペア:

[(1, 80188540), (2, 40094270), (4, 20047135), (5, 16037708), (10, 8018854), (20, 4009427), (409, 196060), (818, 98030), (1636, 49015), (2045, 39212), (4090, 19606), (8180, 9803)]