68975680

素因数分解:

$2^6\times 5^1\times {\mathrm{439}}^1\times {\mathrm{491}}^1$

素因数の和:947

約数の個数: 56

約数和(自身を含む): 164957760

約数和(自身を除く): 95982080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 439, 491, 878, 982, 1756, 1964, 2195, 2455, 3512, 3928, 4390, 4910, 7024, 7856, 8780, 9820, 14048, 15712, 17560, 19640, 28096, 31424, 35120, 39280, 70240, 78560, 140480, 157120, 215549, 431098, 862196, 1077745, 1724392, 2155490, 3448784, 4310980, 6897568, 8621960, 13795136, 17243920, 34487840, 68975680]

約数ペア:

[(1, 68975680), (2, 34487840), (4, 17243920), (5, 13795136), (8, 8621960), (10, 6897568), (16, 4310980), (20, 3448784), (32, 2155490), (40, 1724392), (64, 1077745), (80, 862196), (160, 431098), (320, 215549), (439, 157120), (491, 140480), (878, 78560), (982, 70240), (1756, 39280), (1964, 35120), (2195, 31424), (2455, 28096), (3512, 19640), (3928, 17560), (4390, 15712), (4910, 14048), (7024, 9820), (7856, 8780)]