2081900

素因数分解:

$2^2\times 5^2\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:314

約数の個数: 36

約数和(自身を含む): 4583040

約数和(自身を除く): 2501140

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 109, 191, 218, 382, 436, 545, 764, 955, 1090, 1910, 2180, 2725, 3820, 4775, 5450, 9550, 10900, 19100, 20819, 41638, 83276, 104095, 208190, 416380, 520475, 1040950, 2081900]

約数ペア:

[(1, 2081900), (2, 1040950), (4, 520475), (5, 416380), (10, 208190), (20, 104095), (25, 83276), (50, 41638), (100, 20819), (109, 19100), (191, 10900), (218, 9550), (382, 5450), (436, 4775), (545, 3820), (764, 2725), (955, 2180), (1090, 1910)]