28686240

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1811}}^1$

素因数の和:1843

約数の個数: 144

約数和(自身を含む): 106850016

約数和(自身を除く): 78163776

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 96, 99, 110, 120, 132, 144, 160, 165, 176, 180, 198, 220, 240, 264, 288, 330, 352, 360, 396, 440, 480, 495, 528, 660, 720, 792, 880, 990, 1056, 1320, 1440, 1584, 1760, 1811, 1980, 2640, 3168, 3622, 3960, 5280, 5433, 7244, 7920, 9055, 10866, 14488, 15840, 16299, 18110, 19921, 21732, 27165, 28976, 32598, 36220, 39842, 43464, 54330, 57952, 59763, 65196, 72440, 79684, 81495, 86928, 99605, 108660, 119526, 130392, 144880, 159368, 162990, 173856, 179289, 199210, 217320, 239052, 260784, 289760, 298815, 318736, 325980, 358578, 398420, 434640, 478104, 521568, 597630, 637472, 651960, 717156, 796840, 869280, 896445, 956208, 1195260, 1303920, 1434312, 1593680, 1792890, 1912416, 2390520, 2607840, 2868624, 3187360, 3585780, 4781040, 5737248, 7171560, 9562080, 14343120, 28686240]

約数ペア:

[(1, 28686240), (2, 14343120), (3, 9562080), (4, 7171560), (5, 5737248), (6, 4781040), (8, 3585780), (9, 3187360), (10, 2868624), (11, 2607840), (12, 2390520), (15, 1912416), (16, 1792890), (18, 1593680), (20, 1434312), (22, 1303920), (24, 1195260), (30, 956208), (32, 896445), (33, 869280), (36, 796840), (40, 717156), (44, 651960), (45, 637472), (48, 597630), (55, 521568), (60, 478104), (66, 434640), (72, 398420), (80, 358578), (88, 325980), (90, 318736), (96, 298815), (99, 289760), (110, 260784), (120, 239052), (132, 217320), (144, 199210), (160, 179289), (165, 173856), (176, 162990), (180, 159368), (198, 144880), (220, 130392), (240, 119526), (264, 108660), (288, 99605), (330, 86928), (352, 81495), (360, 79684), (396, 72440), (440, 65196), (480, 59763), (495, 57952), (528, 54330), (660, 43464), (720, 39842), (792, 36220), (880, 32598), (990, 28976), (1056, 27165), (1320, 21732), (1440, 19921), (1584, 18110), (1760, 16299), (1811, 15840), (1980, 14488), (2640, 10866), (3168, 9055), (3622, 7920), (3960, 7244), (5280, 5433)]