9977000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{907}}^1$

素因数の和:939

約数の個数: 64

約数和(自身を含む): 25496640

約数和(自身を除く): 15519640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 125, 200, 220, 250, 275, 440, 500, 550, 907, 1000, 1100, 1375, 1814, 2200, 2750, 3628, 4535, 5500, 7256, 9070, 9977, 11000, 18140, 19954, 22675, 36280, 39908, 45350, 49885, 79816, 90700, 99770, 113375, 181400, 199540, 226750, 249425, 399080, 453500, 498850, 907000, 997700, 1247125, 1995400, 2494250, 4988500, 9977000]

約数ペア:

[(1, 9977000), (2, 4988500), (4, 2494250), (5, 1995400), (8, 1247125), (10, 997700), (11, 907000), (20, 498850), (22, 453500), (25, 399080), (40, 249425), (44, 226750), (50, 199540), (55, 181400), (88, 113375), (100, 99770), (110, 90700), (125, 79816), (200, 49885), (220, 45350), (250, 39908), (275, 36280), (440, 22675), (500, 19954), (550, 18140), (907, 11000), (1000, 9977), (1100, 9070), (1375, 7256), (1814, 5500), (2200, 4535), (2750, 3628)]