66905860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{477899}}^1$

素因数の和:477915

約数の個数: 24

約数和(自身を含む): 160574400

約数和(自身を除く): 93668540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 477899, 955798, 1911596, 2389495, 3345293, 4778990, 6690586, 9557980, 13381172, 16726465, 33452930, 66905860]

約数ペア:

[(1, 66905860), (2, 33452930), (4, 16726465), (5, 13381172), (7, 9557980), (10, 6690586), (14, 4778990), (20, 3345293), (28, 2389495), (35, 1911596), (70, 955798), (140, 477899)]