27971860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199799}}^1$

素因数の和:199815

約数の個数: 24

約数和(自身を含む): 67132800

約数和(自身を除く): 39160940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199799, 399598, 799196, 998995, 1398593, 1997990, 2797186, 3995980, 5594372, 6992965, 13985930, 27971860]

約数ペア:

[(1, 27971860), (2, 13985930), (4, 6992965), (5, 5594372), (7, 3995980), (10, 2797186), (14, 1997990), (20, 1398593), (28, 998995), (35, 799196), (70, 399598), (140, 199799)]