1821160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4139}}^1$

素因数の和:4161

約数の個数: 32

約数和(自身を含む): 4471200

約数和(自身を除く): 2650040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 4139, 8278, 16556, 20695, 33112, 41390, 45529, 82780, 91058, 165560, 182116, 227645, 364232, 455290, 910580, 1821160]

約数ペア:

[(1, 1821160), (2, 910580), (4, 455290), (5, 364232), (8, 227645), (10, 182116), (11, 165560), (20, 91058), (22, 82780), (40, 45529), (44, 41390), (55, 33112), (88, 20695), (110, 16556), (220, 8278), (440, 4139)]