2250280

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{557}}^1$

素因数の和:669

約数の個数: 32

約数和(自身を含む): 5122440

約数和(自身を除く): 2872160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 557, 808, 1010, 1114, 2020, 2228, 2785, 4040, 4456, 5570, 11140, 22280, 56257, 112514, 225028, 281285, 450056, 562570, 1125140, 2250280]

約数ペア:

[(1, 2250280), (2, 1125140), (4, 562570), (5, 450056), (8, 281285), (10, 225028), (20, 112514), (40, 56257), (101, 22280), (202, 11140), (404, 5570), (505, 4456), (557, 4040), (808, 2785), (1010, 2228), (1114, 2020)]