81409905

素因数分解:

$3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{9091}}^1$

素因数の和:9301

約数の個数: 24

約数和(自身を含む): 141835200

約数和(自身を除く): 60425295

約数列:

[1, 3, 5, 9, 15, 45, 199, 597, 995, 1791, 2985, 8955, 9091, 27273, 45455, 81819, 136365, 409095, 1809109, 5427327, 9045545, 16281981, 27136635, 81409905]

約数ペア:

[(1, 81409905), (3, 27136635), (5, 16281981), (9, 9045545), (15, 5427327), (45, 1809109), (199, 409095), (597, 136365), (995, 81819), (1791, 45455), (2985, 27273), (8955, 9091)]