1221000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1$

素因数の和:72

約数の個数: 128

約数和(自身を含む): 4268160

約数和(自身を除く): 3047160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 25, 30, 33, 37, 40, 44, 50, 55, 60, 66, 74, 75, 88, 100, 110, 111, 120, 125, 132, 148, 150, 165, 185, 200, 220, 222, 250, 264, 275, 296, 300, 330, 370, 375, 407, 440, 444, 500, 550, 555, 600, 660, 740, 750, 814, 825, 888, 925, 1000, 1100, 1110, 1221, 1320, 1375, 1480, 1500, 1628, 1650, 1850, 2035, 2200, 2220, 2442, 2750, 2775, 3000, 3256, 3300, 3700, 4070, 4125, 4440, 4625, 4884, 5500, 5550, 6105, 6600, 7400, 8140, 8250, 9250, 9768, 10175, 11000, 11100, 12210, 13875, 16280, 16500, 18500, 20350, 22200, 24420, 27750, 30525, 33000, 37000, 40700, 48840, 50875, 55500, 61050, 81400, 101750, 111000, 122100, 152625, 203500, 244200, 305250, 407000, 610500, 1221000]

約数ペア:

[(1, 1221000), (2, 610500), (3, 407000), (4, 305250), (5, 244200), (6, 203500), (8, 152625), (10, 122100), (11, 111000), (12, 101750), (15, 81400), (20, 61050), (22, 55500), (24, 50875), (25, 48840), (30, 40700), (33, 37000), (37, 33000), (40, 30525), (44, 27750), (50, 24420), (55, 22200), (60, 20350), (66, 18500), (74, 16500), (75, 16280), (88, 13875), (100, 12210), (110, 11100), (111, 11000), (120, 10175), (125, 9768), (132, 9250), (148, 8250), (150, 8140), (165, 7400), (185, 6600), (200, 6105), (220, 5550), (222, 5500), (250, 4884), (264, 4625), (275, 4440), (296, 4125), (300, 4070), (330, 3700), (370, 3300), (375, 3256), (407, 3000), (440, 2775), (444, 2750), (500, 2442), (550, 2220), (555, 2200), (600, 2035), (660, 1850), (740, 1650), (750, 1628), (814, 1500), (825, 1480), (888, 1375), (925, 1320), (1000, 1221), (1100, 1110)]