638918400

素因数分解:

$2^8\times 3^1\times 5^2\times {\mathrm{107}}^1\times {\mathrm{311}}^1$

素因数の和:447

約数の個数: 216

約数和(自身を含む): 2135113344

約数和(自身を除く): 1496194944

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 75, 80, 96, 100, 107, 120, 128, 150, 160, 192, 200, 214, 240, 256, 300, 311, 320, 321, 384, 400, 428, 480, 535, 600, 622, 640, 642, 768, 800, 856, 933, 960, 1070, 1200, 1244, 1280, 1284, 1555, 1600, 1605, 1712, 1866, 1920, 2140, 2400, 2488, 2568, 2675, 3110, 3200, 3210, 3424, 3732, 3840, 4280, 4665, 4800, 4976, 5136, 5350, 6220, 6400, 6420, 6848, 7464, 7775, 8025, 8560, 9330, 9600, 9952, 10272, 10700, 12440, 12840, 13696, 14928, 15550, 16050, 17120, 18660, 19200, 19904, 20544, 21400, 23325, 24880, 25680, 27392, 29856, 31100, 32100, 33277, 34240, 37320, 39808, 41088, 42800, 46650, 49760, 51360, 59712, 62200, 64200, 66554, 68480, 74640, 79616, 82176, 85600, 93300, 99520, 99831, 102720, 119424, 124400, 128400, 133108, 136960, 149280, 166385, 171200, 186600, 199040, 199662, 205440, 238848, 248800, 256800, 266216, 298560, 332770, 342400, 373200, 398080, 399324, 410880, 497600, 499155, 513600, 532432, 597120, 665540, 684800, 746400, 798648, 831925, 995200, 998310, 1027200, 1064864, 1194240, 1331080, 1492800, 1597296, 1663850, 1990400, 1996620, 2054400, 2129728, 2495775, 2662160, 2985600, 3194592, 3327700, 3993240, 4259456, 4991550, 5324320, 5971200, 6389184, 6655400, 7986480, 8518912, 9983100, 10648640, 12778368, 13310800, 15972960, 19966200, 21297280, 25556736, 26621600, 31945920, 39932400, 42594560, 53243200, 63891840, 79864800, 106486400, 127783680, 159729600, 212972800, 319459200, 638918400]

約数ペア:

[(1, 638918400), (2, 319459200), (3, 212972800), (4, 159729600), (5, 127783680), (6, 106486400), (8, 79864800), (10, 63891840), (12, 53243200), (15, 42594560), (16, 39932400), (20, 31945920), (24, 26621600), (25, 25556736), (30, 21297280), (32, 19966200), (40, 15972960), (48, 13310800), (50, 12778368), (60, 10648640), (64, 9983100), (75, 8518912), (80, 7986480), (96, 6655400), (100, 6389184), (107, 5971200), (120, 5324320), (128, 4991550), (150, 4259456), (160, 3993240), (192, 3327700), (200, 3194592), (214, 2985600), (240, 2662160), (256, 2495775), (300, 2129728), (311, 2054400), (320, 1996620), (321, 1990400), (384, 1663850), (400, 1597296), (428, 1492800), (480, 1331080), (535, 1194240), (600, 1064864), (622, 1027200), (640, 998310), (642, 995200), (768, 831925), (800, 798648), (856, 746400), (933, 684800), (960, 665540), (1070, 597120), (1200, 532432), (1244, 513600), (1280, 499155), (1284, 497600), (1555, 410880), (1600, 399324), (1605, 398080), (1712, 373200), (1866, 342400), (1920, 332770), (2140, 298560), (2400, 266216), (2488, 256800), (2568, 248800), (2675, 238848), (3110, 205440), (3200, 199662), (3210, 199040), (3424, 186600), (3732, 171200), (3840, 166385), (4280, 149280), (4665, 136960), (4800, 133108), (4976, 128400), (5136, 124400), (5350, 119424), (6220, 102720), (6400, 99831), (6420, 99520), (6848, 93300), (7464, 85600), (7775, 82176), (8025, 79616), (8560, 74640), (9330, 68480), (9600, 66554), (9952, 64200), (10272, 62200), (10700, 59712), (12440, 51360), (12840, 49760), (13696, 46650), (14928, 42800), (15550, 41088), (16050, 39808), (17120, 37320), (18660, 34240), (19200, 33277), (19904, 32100), (20544, 31100), (21400, 29856), (23325, 27392), (24880, 25680)]