496493780

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{245789}}^1$

素因数の和:245899

約数の個数: 24

約数和(自身を含む): 1052964360

約数和(自身を除く): 556470580

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 245789, 491578, 983156, 1228945, 2457890, 4915780, 24824689, 49649378, 99298756, 124123445, 248246890, 496493780]

約数ペア:

[(1, 496493780), (2, 248246890), (4, 124123445), (5, 99298756), (10, 49649378), (20, 24824689), (101, 4915780), (202, 2457890), (404, 1228945), (505, 983156), (1010, 491578), (2020, 245789)]