128567775

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{12889}}^1$

素因数の和:12928

約数の個数: 48

約数和(自身を含む): 255737600

約数和(自身を除く): 127169825

約数列:

[1, 3, 5, 7, 15, 19, 21, 25, 35, 57, 75, 95, 105, 133, 175, 285, 399, 475, 525, 665, 1425, 1995, 3325, 9975, 12889, 38667, 64445, 90223, 193335, 244891, 270669, 322225, 451115, 734673, 966675, 1224455, 1353345, 1714237, 2255575, 3673365, 5142711, 6122275, 6766725, 8571185, 18366825, 25713555, 42855925, 128567775]

約数ペア:

[(1, 128567775), (3, 42855925), (5, 25713555), (7, 18366825), (15, 8571185), (19, 6766725), (21, 6122275), (25, 5142711), (35, 3673365), (57, 2255575), (75, 1714237), (95, 1353345), (105, 1224455), (133, 966675), (175, 734673), (285, 451115), (399, 322225), (475, 270669), (525, 244891), (665, 193335), (1425, 90223), (1995, 64445), (3325, 38667), (9975, 12889)]