129955400

素因数分解:

$2^3\times 5^2\times {\mathrm{649777}}^1$

素因数の和:649793

約数の個数: 24

約数和(自身を含む): 302146770

約数和(自身を除く): 172191370

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 649777, 1299554, 2599108, 3248885, 5198216, 6497770, 12995540, 16244425, 25991080, 32488850, 64977700, 129955400]

約数ペア:

[(1, 129955400), (2, 64977700), (4, 32488850), (5, 25991080), (8, 16244425), (10, 12995540), (20, 6497770), (25, 5198216), (40, 3248885), (50, 2599108), (100, 1299554), (200, 649777)]