72019938040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{266701}}^1$

素因数の和:266912

約数の個数: 64

約数和(自身を含む): 166870107360

約数和(自身を除く): 94850169320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 157, 172, 215, 314, 344, 430, 628, 785, 860, 1256, 1570, 1720, 3140, 6280, 6751, 13502, 27004, 33755, 54008, 67510, 135020, 266701, 270040, 533402, 1066804, 1333505, 2133608, 2667010, 5334020, 10668040, 11468143, 22936286, 41872057, 45872572, 57340715, 83744114, 91745144, 114681430, 167488228, 209360285, 229362860, 334976456, 418720570, 458725720, 837441140, 1674882280, 1800498451, 3600996902, 7201993804, 9002492255, 14403987608, 18004984510, 36009969020, 72019938040]

約数ペア:

[(1, 72019938040), (2, 36009969020), (4, 18004984510), (5, 14403987608), (8, 9002492255), (10, 7201993804), (20, 3600996902), (40, 1800498451), (43, 1674882280), (86, 837441140), (157, 458725720), (172, 418720570), (215, 334976456), (314, 229362860), (344, 209360285), (430, 167488228), (628, 114681430), (785, 91745144), (860, 83744114), (1256, 57340715), (1570, 45872572), (1720, 41872057), (3140, 22936286), (6280, 11468143), (6751, 10668040), (13502, 5334020), (27004, 2667010), (33755, 2133608), (54008, 1333505), (67510, 1066804), (135020, 533402), (266701, 270040)]