78827745

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1\times {\mathrm{431}}^1$

素因数の和:665

約数の個数: 32

約数和(自身を含む): 128770560

約数和(自身を除く): 49942815

約数列:

[1, 3, 5, 15, 89, 137, 267, 411, 431, 445, 685, 1293, 1335, 2055, 2155, 6465, 12193, 36579, 38359, 59047, 60965, 115077, 177141, 182895, 191795, 295235, 575385, 885705, 5255183, 15765549, 26275915, 78827745]

約数ペア:

[(1, 78827745), (3, 26275915), (5, 15765549), (15, 5255183), (89, 885705), (137, 575385), (267, 295235), (411, 191795), (431, 182895), (445, 177141), (685, 115077), (1293, 60965), (1335, 59047), (2055, 38359), (2155, 36579), (6465, 12193)]