7874000

素因数分解:

$2^4\times 5^3\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:181

約数の個数: 80

約数和(自身を含む): 19808256

約数和(自身を除く): 11934256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 125, 127, 155, 200, 248, 250, 254, 310, 400, 496, 500, 508, 620, 635, 775, 1000, 1016, 1240, 1270, 1550, 2000, 2032, 2480, 2540, 3100, 3175, 3875, 3937, 5080, 6200, 6350, 7750, 7874, 10160, 12400, 12700, 15500, 15748, 15875, 19685, 25400, 31000, 31496, 31750, 39370, 50800, 62000, 62992, 63500, 78740, 98425, 127000, 157480, 196850, 254000, 314960, 393700, 492125, 787400, 984250, 1574800, 1968500, 3937000, 7874000]

約数ペア:

[(1, 7874000), (2, 3937000), (4, 1968500), (5, 1574800), (8, 984250), (10, 787400), (16, 492125), (20, 393700), (25, 314960), (31, 254000), (40, 196850), (50, 157480), (62, 127000), (80, 98425), (100, 78740), (124, 63500), (125, 62992), (127, 62000), (155, 50800), (200, 39370), (248, 31750), (250, 31496), (254, 31000), (310, 25400), (400, 19685), (496, 15875), (500, 15748), (508, 15500), (620, 12700), (635, 12400), (775, 10160), (1000, 7874), (1016, 7750), (1240, 6350), (1270, 6200), (1550, 5080), (2000, 3937), (2032, 3875), (2480, 3175), (2540, 3100)]