1247500

素因数分解:

$2^2\times 5^4\times {\mathrm{499}}^1$

素因数の和:523

約数の個数: 30

約数和(自身を含む): 2733500

約数和(自身を除く): 1486000

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 499, 500, 625, 998, 1250, 1996, 2495, 2500, 4990, 9980, 12475, 24950, 49900, 62375, 124750, 249500, 311875, 623750, 1247500]

約数ペア:

[(1, 1247500), (2, 623750), (4, 311875), (5, 249500), (10, 124750), (20, 62375), (25, 49900), (50, 24950), (100, 12475), (125, 9980), (250, 4990), (499, 2500), (500, 2495), (625, 1996), (998, 1250)]