2097980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5521}}^1$

素因数の和:5549

約数の個数: 24

約数和(自身を含む): 4638480

約数和(自身を除く): 2540500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 5521, 11042, 22084, 27605, 55210, 104899, 110420, 209798, 419596, 524495, 1048990, 2097980]

約数ペア:

[(1, 2097980), (2, 1048990), (4, 524495), (5, 419596), (10, 209798), (19, 110420), (20, 104899), (38, 55210), (76, 27605), (95, 22084), (190, 11042), (380, 5521)]