87402740

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{40093}}^1$

素因数の和:40211

約数の個数: 24

約数和(自身を含む): 185234280

約数和(自身を除く): 97831540

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 40093, 80186, 160372, 200465, 400930, 801860, 4370137, 8740274, 17480548, 21850685, 43701370, 87402740]

約数ペア:

[(1, 87402740), (2, 43701370), (4, 21850685), (5, 17480548), (10, 8740274), (20, 4370137), (109, 801860), (218, 400930), (436, 200465), (545, 160372), (1090, 80186), (2180, 40093)]