1287860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{9199}}^1$

素因数の和:9215

約数の個数: 24

約数和(自身を含む): 3091200

約数和(自身を除く): 1803340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 9199, 18398, 36796, 45995, 64393, 91990, 128786, 183980, 257572, 321965, 643930, 1287860]

約数ペア:

[(1, 1287860), (2, 643930), (4, 321965), (5, 257572), (7, 183980), (10, 128786), (14, 91990), (20, 64393), (28, 45995), (35, 36796), (70, 18398), (140, 9199)]