2017791920

素因数分解:

$2^4\times 5^1\times {\mathrm{25222399}}^1$

素因数の和:25222412

約数の個数: 20

約数和(自身を含む): 4691366400

約数和(自身を除く): 2673574480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25222399, 50444798, 100889596, 126111995, 201779192, 252223990, 403558384, 504447980, 1008895960, 2017791920]

約数ペア:

[(1, 2017791920), (2, 1008895960), (4, 504447980), (5, 403558384), (8, 252223990), (10, 201779192), (16, 126111995), (20, 100889596), (40, 50444798), (80, 25222399)]