9999000

素因数分解:

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

素因数の和:139

約数の個数: 192

約数和(自身を含む): 37234080

約数和(自身を除く): 27235080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 25, 30, 33, 36, 40, 44, 45, 50, 55, 60, 66, 72, 75, 88, 90, 99, 100, 101, 110, 120, 125, 132, 150, 165, 180, 198, 200, 202, 220, 225, 250, 264, 275, 300, 303, 330, 360, 375, 396, 404, 440, 450, 495, 500, 505, 550, 600, 606, 660, 750, 792, 808, 825, 900, 909, 990, 1000, 1010, 1100, 1111, 1125, 1212, 1320, 1375, 1500, 1515, 1650, 1800, 1818, 1980, 2020, 2200, 2222, 2250, 2424, 2475, 2525, 2750, 3000, 3030, 3300, 3333, 3636, 3960, 4040, 4125, 4444, 4500, 4545, 4950, 5050, 5500, 5555, 6060, 6600, 6666, 7272, 7575, 8250, 8888, 9000, 9090, 9900, 9999, 10100, 11000, 11110, 12120, 12375, 12625, 13332, 15150, 16500, 16665, 18180, 19800, 19998, 20200, 22220, 22725, 24750, 25250, 26664, 27775, 30300, 33000, 33330, 36360, 37875, 39996, 44440, 45450, 49500, 49995, 50500, 55550, 60600, 66660, 75750, 79992, 83325, 90900, 99000, 99990, 101000, 111100, 113625, 133320, 138875, 151500, 166650, 181800, 199980, 222200, 227250, 249975, 277750, 303000, 333300, 399960, 416625, 454500, 499950, 555500, 666600, 833250, 909000, 999900, 1111000, 1249875, 1666500, 1999800, 2499750, 3333000, 4999500, 9999000]

約数ペア:

[(1, 9999000), (2, 4999500), (3, 3333000), (4, 2499750), (5, 1999800), (6, 1666500), (8, 1249875), (9, 1111000), (10, 999900), (11, 909000), (12, 833250), (15, 666600), (18, 555500), (20, 499950), (22, 454500), (24, 416625), (25, 399960), (30, 333300), (33, 303000), (36, 277750), (40, 249975), (44, 227250), (45, 222200), (50, 199980), (55, 181800), (60, 166650), (66, 151500), (72, 138875), (75, 133320), (88, 113625), (90, 111100), (99, 101000), (100, 99990), (101, 99000), (110, 90900), (120, 83325), (125, 79992), (132, 75750), (150, 66660), (165, 60600), (180, 55550), (198, 50500), (200, 49995), (202, 49500), (220, 45450), (225, 44440), (250, 39996), (264, 37875), (275, 36360), (300, 33330), (303, 33000), (330, 30300), (360, 27775), (375, 26664), (396, 25250), (404, 24750), (440, 22725), (450, 22220), (495, 20200), (500, 19998), (505, 19800), (550, 18180), (600, 16665), (606, 16500), (660, 15150), (750, 13332), (792, 12625), (808, 12375), (825, 12120), (900, 11110), (909, 11000), (990, 10100), (1000, 9999), (1010, 9900), (1100, 9090), (1111, 9000), (1125, 8888), (1212, 8250), (1320, 7575), (1375, 7272), (1500, 6666), (1515, 6600), (1650, 6060), (1800, 5555), (1818, 5500), (1980, 5050), (2020, 4950), (2200, 4545), (2222, 4500), (2250, 4444), (2424, 4125), (2475, 4040), (2525, 3960), (2750, 3636), (3000, 3333), (3030, 3300)]