1999800

素因数分解:

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

素因数の和:134

約数の個数: 144

約数和(自身を含む): 7399080

約数和(自身を除く): 5399280

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, 132, 150, 165, 180, 198, 200, 202, 220, 225, 264, 275, 300, 303, 330, 360, 396, 404, 440, 450, 495, 505, 550, 600, 606, 660, 792, 808, 825, 900, 909, 990, 1010, 1100, 1111, 1212, 1320, 1515, 1650, 1800, 1818, 1980, 2020, 2200, 2222, 2424, 2475, 2525, 3030, 3300, 3333, 3636, 3960, 4040, 4444, 4545, 4950, 5050, 5555, 6060, 6600, 6666, 7272, 7575, 8888, 9090, 9900, 9999, 10100, 11110, 12120, 13332, 15150, 16665, 18180, 19800, 19998, 20200, 22220, 22725, 26664, 27775, 30300, 33330, 36360, 39996, 44440, 45450, 49995, 55550, 60600, 66660, 79992, 83325, 90900, 99990, 111100, 133320, 166650, 181800, 199980, 222200, 249975, 333300, 399960, 499950, 666600, 999900, 1999800]

約数ペア:

[(1, 1999800), (2, 999900), (3, 666600), (4, 499950), (5, 399960), (6, 333300), (8, 249975), (9, 222200), (10, 199980), (11, 181800), (12, 166650), (15, 133320), (18, 111100), (20, 99990), (22, 90900), (24, 83325), (25, 79992), (30, 66660), (33, 60600), (36, 55550), (40, 49995), (44, 45450), (45, 44440), (50, 39996), (55, 36360), (60, 33330), (66, 30300), (72, 27775), (75, 26664), (88, 22725), (90, 22220), (99, 20200), (100, 19998), (101, 19800), (110, 18180), (120, 16665), (132, 15150), (150, 13332), (165, 12120), (180, 11110), (198, 10100), (200, 9999), (202, 9900), (220, 9090), (225, 8888), (264, 7575), (275, 7272), (300, 6666), (303, 6600), (330, 6060), (360, 5555), (396, 5050), (404, 4950), (440, 4545), (450, 4444), (495, 4040), (505, 3960), (550, 3636), (600, 3333), (606, 3300), (660, 3030), (792, 2525), (808, 2475), (825, 2424), (900, 2222), (909, 2200), (990, 2020), (1010, 1980), (1100, 1818), (1111, 1800), (1212, 1650), (1320, 1515)]