128660840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1129}}^1$

素因数の和:1195

約数の個数: 128

約数和(自身を含む): 371001600

約数和(自身を除く): 242340760

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 37, 40, 44, 55, 56, 70, 74, 77, 88, 110, 140, 148, 154, 185, 220, 259, 280, 296, 308, 370, 385, 407, 440, 518, 616, 740, 770, 814, 1036, 1129, 1295, 1480, 1540, 1628, 2035, 2072, 2258, 2590, 2849, 3080, 3256, 4070, 4516, 5180, 5645, 5698, 7903, 8140, 9032, 10360, 11290, 11396, 12419, 14245, 15806, 16280, 22580, 22792, 24838, 28490, 31612, 39515, 41773, 45160, 49676, 56980, 62095, 63224, 79030, 83546, 86933, 99352, 113960, 124190, 158060, 167092, 173866, 208865, 248380, 292411, 316120, 334184, 347732, 417730, 434665, 459503, 496760, 584822, 695464, 835460, 869330, 919006, 1169644, 1462055, 1670920, 1738660, 1838012, 2297515, 2339288, 2924110, 3216521, 3477320, 3676024, 4595030, 5848220, 6433042, 9190060, 11696440, 12866084, 16082605, 18380120, 25732168, 32165210, 64330420, 128660840]

約数ペア:

[(1, 128660840), (2, 64330420), (4, 32165210), (5, 25732168), (7, 18380120), (8, 16082605), (10, 12866084), (11, 11696440), (14, 9190060), (20, 6433042), (22, 5848220), (28, 4595030), (35, 3676024), (37, 3477320), (40, 3216521), (44, 2924110), (55, 2339288), (56, 2297515), (70, 1838012), (74, 1738660), (77, 1670920), (88, 1462055), (110, 1169644), (140, 919006), (148, 869330), (154, 835460), (185, 695464), (220, 584822), (259, 496760), (280, 459503), (296, 434665), (308, 417730), (370, 347732), (385, 334184), (407, 316120), (440, 292411), (518, 248380), (616, 208865), (740, 173866), (770, 167092), (814, 158060), (1036, 124190), (1129, 113960), (1295, 99352), (1480, 86933), (1540, 83546), (1628, 79030), (2035, 63224), (2072, 62095), (2258, 56980), (2590, 49676), (2849, 45160), (3080, 41773), (3256, 39515), (4070, 31612), (4516, 28490), (5180, 24838), (5645, 22792), (5698, 22580), (7903, 16280), (8140, 15806), (9032, 14245), (10360, 12419), (11290, 11396)]