56420140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{403001}}^1$

素因数の和:403017

約数の個数: 24

約数和(自身を含む): 135408672

約数和(自身を除く): 78988532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 403001, 806002, 1612004, 2015005, 2821007, 4030010, 5642014, 8060020, 11284028, 14105035, 28210070, 56420140]

約数ペア:

[(1, 56420140), (2, 28210070), (4, 14105035), (5, 11284028), (7, 8060020), (10, 5642014), (14, 4030010), (20, 2821007), (28, 2015005), (35, 1612004), (70, 806002), (140, 403001)]