20194000

素因数分解:

$2^4\times 5^3\times {\mathrm{23}}^1\times {\mathrm{439}}^1$

素因数の和:485

約数の個数: 80

約数和(自身を含む): 51068160

約数和(自身を除く): 30874160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 40, 46, 50, 80, 92, 100, 115, 125, 184, 200, 230, 250, 368, 400, 439, 460, 500, 575, 878, 920, 1000, 1150, 1756, 1840, 2000, 2195, 2300, 2875, 3512, 4390, 4600, 5750, 7024, 8780, 9200, 10097, 10975, 11500, 17560, 20194, 21950, 23000, 35120, 40388, 43900, 46000, 50485, 54875, 80776, 87800, 100970, 109750, 161552, 175600, 201940, 219500, 252425, 403880, 439000, 504850, 807760, 878000, 1009700, 1262125, 2019400, 2524250, 4038800, 5048500, 10097000, 20194000]

約数ペア:

[(1, 20194000), (2, 10097000), (4, 5048500), (5, 4038800), (8, 2524250), (10, 2019400), (16, 1262125), (20, 1009700), (23, 878000), (25, 807760), (40, 504850), (46, 439000), (50, 403880), (80, 252425), (92, 219500), (100, 201940), (115, 175600), (125, 161552), (184, 109750), (200, 100970), (230, 87800), (250, 80776), (368, 54875), (400, 50485), (439, 46000), (460, 43900), (500, 40388), (575, 35120), (878, 23000), (920, 21950), (1000, 20194), (1150, 17560), (1756, 11500), (1840, 10975), (2000, 10097), (2195, 9200), (2300, 8780), (2875, 7024), (3512, 5750), (4390, 4600)]