20162115

素因数分解:

$3^4\times 5^1\times {\mathrm{49783}}^1$

素因数の和:49800

約数の個数: 20

約数和(自身を含む): 36143184

約数和(自身を除く): 15981069

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 49783, 149349, 248915, 448047, 746745, 1344141, 2240235, 4032423, 6720705, 20162115]

約数ペア:

[(1, 20162115), (3, 6720705), (5, 4032423), (9, 2240235), (15, 1344141), (27, 746745), (45, 448047), (81, 248915), (135, 149349), (405, 49783)]