1908900

素因数分解:

$2^2\times 3^3\times 5^2\times 7^1\times {\mathrm{101}}^1$

素因数の和:131

約数の個数: 144

約数和(自身を含む): 7082880

約数和(自身を除く): 5173980

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 27, 28, 30, 35, 36, 42, 45, 50, 54, 60, 63, 70, 75, 84, 90, 100, 101, 105, 108, 126, 135, 140, 150, 175, 180, 189, 202, 210, 225, 252, 270, 300, 303, 315, 350, 378, 404, 420, 450, 505, 525, 540, 606, 630, 675, 700, 707, 756, 900, 909, 945, 1010, 1050, 1212, 1260, 1350, 1414, 1515, 1575, 1818, 1890, 2020, 2100, 2121, 2525, 2700, 2727, 2828, 3030, 3150, 3535, 3636, 3780, 4242, 4545, 4725, 5050, 5454, 6060, 6300, 6363, 7070, 7575, 8484, 9090, 9450, 10100, 10605, 10908, 12726, 13635, 14140, 15150, 17675, 18180, 18900, 19089, 21210, 22725, 25452, 27270, 30300, 31815, 35350, 38178, 42420, 45450, 53025, 54540, 63630, 68175, 70700, 76356, 90900, 95445, 106050, 127260, 136350, 159075, 190890, 212100, 272700, 318150, 381780, 477225, 636300, 954450, 1908900]

約数ペア:

[(1, 1908900), (2, 954450), (3, 636300), (4, 477225), (5, 381780), (6, 318150), (7, 272700), (9, 212100), (10, 190890), (12, 159075), (14, 136350), (15, 127260), (18, 106050), (20, 95445), (21, 90900), (25, 76356), (27, 70700), (28, 68175), (30, 63630), (35, 54540), (36, 53025), (42, 45450), (45, 42420), (50, 38178), (54, 35350), (60, 31815), (63, 30300), (70, 27270), (75, 25452), (84, 22725), (90, 21210), (100, 19089), (101, 18900), (105, 18180), (108, 17675), (126, 15150), (135, 14140), (140, 13635), (150, 12726), (175, 10908), (180, 10605), (189, 10100), (202, 9450), (210, 9090), (225, 8484), (252, 7575), (270, 7070), (300, 6363), (303, 6300), (315, 6060), (350, 5454), (378, 5050), (404, 4725), (420, 4545), (450, 4242), (505, 3780), (525, 3636), (540, 3535), (606, 3150), (630, 3030), (675, 2828), (700, 2727), (707, 2700), (756, 2525), (900, 2121), (909, 2100), (945, 2020), (1010, 1890), (1050, 1818), (1212, 1575), (1260, 1515), (1350, 1414)]