66799900

素因数分解:

$2^2\times 5^2\times {\mathrm{667999}}^1$

素因数の和:668013

約数の個数: 18

約数和(自身を含む): 144956000

約数和(自身を除く): 78156100

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 667999, 1335998, 2671996, 3339995, 6679990, 13359980, 16699975, 33399950, 66799900]

約数ペア:

[(1, 66799900), (2, 33399950), (4, 16699975), (5, 13359980), (10, 6679990), (20, 3339995), (25, 2671996), (50, 1335998), (100, 667999)]