138267440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{439}}^1$

素因数の和:610

約数の個数: 80

約数和(自身を含む): 335216640

約数和(自身を除く): 196949200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 127, 155, 248, 254, 310, 439, 496, 508, 620, 635, 878, 1016, 1240, 1270, 1756, 2032, 2195, 2480, 2540, 3512, 3937, 4390, 5080, 7024, 7874, 8780, 10160, 13609, 15748, 17560, 19685, 27218, 31496, 35120, 39370, 54436, 55753, 62992, 68045, 78740, 108872, 111506, 136090, 157480, 217744, 223012, 272180, 278765, 314960, 446024, 544360, 557530, 892048, 1088720, 1115060, 1728343, 2230120, 3456686, 4460240, 6913372, 8641715, 13826744, 17283430, 27653488, 34566860, 69133720, 138267440]

約数ペア:

[(1, 138267440), (2, 69133720), (4, 34566860), (5, 27653488), (8, 17283430), (10, 13826744), (16, 8641715), (20, 6913372), (31, 4460240), (40, 3456686), (62, 2230120), (80, 1728343), (124, 1115060), (127, 1088720), (155, 892048), (248, 557530), (254, 544360), (310, 446024), (439, 314960), (496, 278765), (508, 272180), (620, 223012), (635, 217744), (878, 157480), (1016, 136090), (1240, 111506), (1270, 108872), (1756, 78740), (2032, 68045), (2195, 62992), (2480, 55753), (2540, 54436), (3512, 39370), (3937, 35120), (4390, 31496), (5080, 27218), (7024, 19685), (7874, 17560), (8780, 15748), (10160, 13609)]