4444000

素因数分解:

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

素因数の和:137

約数の個数: 96

約数和(自身を含む): 12029472

約数和(自身を除く): 7585472

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 80, 88, 100, 101, 110, 125, 160, 176, 200, 202, 220, 250, 275, 352, 400, 404, 440, 500, 505, 550, 800, 808, 880, 1000, 1010, 1100, 1111, 1375, 1616, 1760, 2000, 2020, 2200, 2222, 2525, 2750, 3232, 4000, 4040, 4400, 4444, 5050, 5500, 5555, 8080, 8800, 8888, 10100, 11000, 11110, 12625, 16160, 17776, 20200, 22000, 22220, 25250, 27775, 35552, 40400, 44000, 44440, 50500, 55550, 80800, 88880, 101000, 111100, 138875, 177760, 202000, 222200, 277750, 404000, 444400, 555500, 888800, 1111000, 2222000, 4444000]

約数ペア:

[(1, 4444000), (2, 2222000), (4, 1111000), (5, 888800), (8, 555500), (10, 444400), (11, 404000), (16, 277750), (20, 222200), (22, 202000), (25, 177760), (32, 138875), (40, 111100), (44, 101000), (50, 88880), (55, 80800), (80, 55550), (88, 50500), (100, 44440), (101, 44000), (110, 40400), (125, 35552), (160, 27775), (176, 25250), (200, 22220), (202, 22000), (220, 20200), (250, 17776), (275, 16160), (352, 12625), (400, 11110), (404, 11000), (440, 10100), (500, 8888), (505, 8800), (550, 8080), (800, 5555), (808, 5500), (880, 5050), (1000, 4444), (1010, 4400), (1100, 4040), (1111, 4000), (1375, 3232), (1616, 2750), (1760, 2525), (2000, 2222), (2020, 2200)]