51286160

素因数分解:

$2^4\times 5^1\times {\mathrm{641077}}^1$

素因数の和:641090

約数の個数: 20

約数和(自身を含む): 119240508

約数和(自身を除く): 67954348

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 641077, 1282154, 2564308, 3205385, 5128616, 6410770, 10257232, 12821540, 25643080, 51286160]

約数ペア:

[(1, 51286160), (2, 25643080), (4, 12821540), (5, 10257232), (8, 6410770), (10, 5128616), (16, 3205385), (20, 2564308), (40, 1282154), (80, 641077)]