999900

素因数分解:

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

素因数の和:132

約数の個数: 108

約数和(自身を含む): 3452904

約数和(自身を除く): 2453004

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 25, 30, 33, 36, 44, 45, 50, 55, 60, 66, 75, 90, 99, 100, 101, 110, 132, 150, 165, 180, 198, 202, 220, 225, 275, 300, 303, 330, 396, 404, 450, 495, 505, 550, 606, 660, 825, 900, 909, 990, 1010, 1100, 1111, 1212, 1515, 1650, 1818, 1980, 2020, 2222, 2475, 2525, 3030, 3300, 3333, 3636, 4444, 4545, 4950, 5050, 5555, 6060, 6666, 7575, 9090, 9900, 9999, 10100, 11110, 13332, 15150, 16665, 18180, 19998, 22220, 22725, 27775, 30300, 33330, 39996, 45450, 49995, 55550, 66660, 83325, 90900, 99990, 111100, 166650, 199980, 249975, 333300, 499950, 999900]

約数ペア:

[(1, 999900), (2, 499950), (3, 333300), (4, 249975), (5, 199980), (6, 166650), (9, 111100), (10, 99990), (11, 90900), (12, 83325), (15, 66660), (18, 55550), (20, 49995), (22, 45450), (25, 39996), (30, 33330), (33, 30300), (36, 27775), (44, 22725), (45, 22220), (50, 19998), (55, 18180), (60, 16665), (66, 15150), (75, 13332), (90, 11110), (99, 10100), (100, 9999), (101, 9900), (110, 9090), (132, 7575), (150, 6666), (165, 6060), (180, 5555), (198, 5050), (202, 4950), (220, 4545), (225, 4444), (275, 3636), (300, 3333), (303, 3300), (330, 3030), (396, 2525), (404, 2475), (450, 2222), (495, 2020), (505, 1980), (550, 1818), (606, 1650), (660, 1515), (825, 1212), (900, 1111), (909, 1100), (990, 1010)]