2019400

素因数分解:

$2^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{439}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 4910400

約数和(自身を除く): 2891000

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 92, 100, 115, 184, 200, 230, 439, 460, 575, 878, 920, 1150, 1756, 2195, 2300, 3512, 4390, 4600, 8780, 10097, 10975, 17560, 20194, 21950, 40388, 43900, 50485, 80776, 87800, 100970, 201940, 252425, 403880, 504850, 1009700, 2019400]

約数ペア:

[(1, 2019400), (2, 1009700), (4, 504850), (5, 403880), (8, 252425), (10, 201940), (20, 100970), (23, 87800), (25, 80776), (40, 50485), (46, 43900), (50, 40388), (92, 21950), (100, 20194), (115, 17560), (184, 10975), (200, 10097), (230, 8780), (439, 4600), (460, 4390), (575, 3512), (878, 2300), (920, 2195), (1150, 1756)]