81305110

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{193}}^1\times {\mathrm{409}}^1$

素因数の和:712

約数の個数: 32

約数和(自身を含む): 148898880

約数和(自身を除く): 67593770

約数列:

[1, 2, 5, 10, 103, 193, 206, 386, 409, 515, 818, 965, 1030, 1930, 2045, 4090, 19879, 39758, 42127, 78937, 84254, 99395, 157874, 198790, 210635, 394685, 421270, 789370, 8130511, 16261022, 40652555, 81305110]

約数ペア:

[(1, 81305110), (2, 40652555), (5, 16261022), (10, 8130511), (103, 789370), (193, 421270), (206, 394685), (386, 210635), (409, 198790), (515, 157874), (818, 99395), (965, 84254), (1030, 78937), (1930, 42127), (2045, 39758), (4090, 19879)]