1989900

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1$

素因数の和:101

約数の個数: 144

約数和(自身を含む): 7082880

約数和(自身を除く): 5092980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 25, 27, 30, 33, 36, 44, 45, 50, 54, 55, 60, 66, 67, 75, 90, 99, 100, 108, 110, 132, 134, 135, 150, 165, 180, 198, 201, 220, 225, 268, 270, 275, 297, 300, 330, 335, 396, 402, 450, 495, 540, 550, 594, 603, 660, 670, 675, 737, 804, 825, 900, 990, 1005, 1100, 1188, 1206, 1340, 1350, 1474, 1485, 1650, 1675, 1809, 1980, 2010, 2211, 2412, 2475, 2700, 2948, 2970, 3015, 3300, 3350, 3618, 3685, 4020, 4422, 4950, 5025, 5940, 6030, 6633, 6700, 7236, 7370, 7425, 8844, 9045, 9900, 10050, 11055, 12060, 13266, 14740, 14850, 15075, 18090, 18425, 19899, 20100, 22110, 26532, 29700, 30150, 33165, 36180, 36850, 39798, 44220, 45225, 55275, 60300, 66330, 73700, 79596, 90450, 99495, 110550, 132660, 165825, 180900, 198990, 221100, 331650, 397980, 497475, 663300, 994950, 1989900]

約数ペア:

[(1, 1989900), (2, 994950), (3, 663300), (4, 497475), (5, 397980), (6, 331650), (9, 221100), (10, 198990), (11, 180900), (12, 165825), (15, 132660), (18, 110550), (20, 99495), (22, 90450), (25, 79596), (27, 73700), (30, 66330), (33, 60300), (36, 55275), (44, 45225), (45, 44220), (50, 39798), (54, 36850), (55, 36180), (60, 33165), (66, 30150), (67, 29700), (75, 26532), (90, 22110), (99, 20100), (100, 19899), (108, 18425), (110, 18090), (132, 15075), (134, 14850), (135, 14740), (150, 13266), (165, 12060), (180, 11055), (198, 10050), (201, 9900), (220, 9045), (225, 8844), (268, 7425), (270, 7370), (275, 7236), (297, 6700), (300, 6633), (330, 6030), (335, 5940), (396, 5025), (402, 4950), (450, 4422), (495, 4020), (540, 3685), (550, 3618), (594, 3350), (603, 3300), (660, 3015), (670, 2970), (675, 2948), (737, 2700), (804, 2475), (825, 2412), (900, 2211), (990, 2010), (1005, 1980), (1100, 1809), (1188, 1675), (1206, 1650), (1340, 1485), (1350, 1474)]