18887000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1$

素因数の和:150

約数の個数: 128

約数和(自身を含む): 51554880

約数和(自身を除く): 32667880

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 25, 34, 40, 44, 50, 55, 68, 85, 88, 100, 101, 110, 125, 136, 170, 187, 200, 202, 220, 250, 275, 340, 374, 404, 425, 440, 500, 505, 550, 680, 748, 808, 850, 935, 1000, 1010, 1100, 1111, 1375, 1496, 1700, 1717, 1870, 2020, 2125, 2200, 2222, 2525, 2750, 3400, 3434, 3740, 4040, 4250, 4444, 4675, 5050, 5500, 5555, 6868, 7480, 8500, 8585, 8888, 9350, 10100, 11000, 11110, 12625, 13736, 17000, 17170, 18700, 18887, 20200, 22220, 23375, 25250, 27775, 34340, 37400, 37774, 42925, 44440, 46750, 50500, 55550, 68680, 75548, 85850, 93500, 94435, 101000, 111100, 138875, 151096, 171700, 187000, 188870, 214625, 222200, 277750, 343400, 377740, 429250, 472175, 555500, 755480, 858500, 944350, 1111000, 1717000, 1888700, 2360875, 3777400, 4721750, 9443500, 18887000]

約数ペア:

[(1, 18887000), (2, 9443500), (4, 4721750), (5, 3777400), (8, 2360875), (10, 1888700), (11, 1717000), (17, 1111000), (20, 944350), (22, 858500), (25, 755480), (34, 555500), (40, 472175), (44, 429250), (50, 377740), (55, 343400), (68, 277750), (85, 222200), (88, 214625), (100, 188870), (101, 187000), (110, 171700), (125, 151096), (136, 138875), (170, 111100), (187, 101000), (200, 94435), (202, 93500), (220, 85850), (250, 75548), (275, 68680), (340, 55550), (374, 50500), (404, 46750), (425, 44440), (440, 42925), (500, 37774), (505, 37400), (550, 34340), (680, 27775), (748, 25250), (808, 23375), (850, 22220), (935, 20200), (1000, 18887), (1010, 18700), (1100, 17170), (1111, 17000), (1375, 13736), (1496, 12625), (1700, 11110), (1717, 11000), (1870, 10100), (2020, 9350), (2125, 8888), (2200, 8585), (2222, 8500), (2525, 7480), (2750, 6868), (3400, 5555), (3434, 5500), (3740, 5050), (4040, 4675), (4250, 4444)]