821249280

素因数分解:

$2^8\times 3^4\times 5^1\times {\mathrm{89}}^2$

素因数の和:211

約数の個数: 270

約数和(自身を含む): 2971968846

約数和(自身を除く): 2150719566

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 89, 90, 96, 108, 120, 128, 135, 144, 160, 162, 178, 180, 192, 216, 240, 256, 267, 270, 288, 320, 324, 356, 360, 384, 405, 432, 445, 480, 534, 540, 576, 640, 648, 712, 720, 768, 801, 810, 864, 890, 960, 1068, 1080, 1152, 1280, 1296, 1335, 1424, 1440, 1602, 1620, 1728, 1780, 1920, 2136, 2160, 2304, 2403, 2592, 2670, 2848, 2880, 3204, 3240, 3456, 3560, 3840, 4005, 4272, 4320, 4806, 5184, 5340, 5696, 5760, 6408, 6480, 6912, 7120, 7209, 7921, 8010, 8544, 8640, 9612, 10368, 10680, 11392, 11520, 12015, 12816, 12960, 14240, 14418, 15842, 16020, 17088, 17280, 19224, 20736, 21360, 22784, 23763, 24030, 25632, 25920, 28480, 28836, 31684, 32040, 34176, 34560, 36045, 38448, 39605, 42720, 47526, 48060, 51264, 51840, 56960, 57672, 63368, 64080, 68352, 71289, 72090, 76896, 79210, 85440, 95052, 96120, 102528, 103680, 113920, 115344, 118815, 126736, 128160, 142578, 144180, 153792, 158420, 170880, 190104, 192240, 205056, 213867, 230688, 237630, 253472, 256320, 285156, 288360, 307584, 316840, 341760, 356445, 380208, 384480, 427734, 461376, 475260, 506944, 512640, 570312, 576720, 615168, 633680, 641601, 712890, 760416, 768960, 855468, 922752, 950520, 1013888, 1025280, 1069335, 1140624, 1153440, 1267360, 1283202, 1425780, 1520832, 1537920, 1710936, 1845504, 1901040, 2027776, 2138670, 2281248, 2306880, 2534720, 2566404, 2851560, 3041664, 3075840, 3208005, 3421872, 3802080, 4277340, 4562496, 4613760, 5069440, 5132808, 5703120, 6083328, 6416010, 6843744, 7604160, 8554680, 9124992, 9227520, 10138880, 10265616, 11406240, 12832020, 13687488, 15208320, 17109360, 18249984, 20531232, 22812480, 25664040, 27374976, 30416640, 34218720, 41062464, 45624960, 51328080, 54749952, 68437440, 82124928, 91249920, 102656160, 136874880, 164249856, 205312320, 273749760, 410624640, 821249280]

約数ペア:

[(1, 821249280), (2, 410624640), (3, 273749760), (4, 205312320), (5, 164249856), (6, 136874880), (8, 102656160), (9, 91249920), (10, 82124928), (12, 68437440), (15, 54749952), (16, 51328080), (18, 45624960), (20, 41062464), (24, 34218720), (27, 30416640), (30, 27374976), (32, 25664040), (36, 22812480), (40, 20531232), (45, 18249984), (48, 17109360), (54, 15208320), (60, 13687488), (64, 12832020), (72, 11406240), (80, 10265616), (81, 10138880), (89, 9227520), (90, 9124992), (96, 8554680), (108, 7604160), (120, 6843744), (128, 6416010), (135, 6083328), (144, 5703120), (160, 5132808), (162, 5069440), (178, 4613760), (180, 4562496), (192, 4277340), (216, 3802080), (240, 3421872), (256, 3208005), (267, 3075840), (270, 3041664), (288, 2851560), (320, 2566404), (324, 2534720), (356, 2306880), (360, 2281248), (384, 2138670), (405, 2027776), (432, 1901040), (445, 1845504), (480, 1710936), (534, 1537920), (540, 1520832), (576, 1425780), (640, 1283202), (648, 1267360), (712, 1153440), (720, 1140624), (768, 1069335), (801, 1025280), (810, 1013888), (864, 950520), (890, 922752), (960, 855468), (1068, 768960), (1080, 760416), (1152, 712890), (1280, 641601), (1296, 633680), (1335, 615168), (1424, 576720), (1440, 570312), (1602, 512640), (1620, 506944), (1728, 475260), (1780, 461376), (1920, 427734), (2136, 384480), (2160, 380208), (2304, 356445), (2403, 341760), (2592, 316840), (2670, 307584), (2848, 288360), (2880, 285156), (3204, 256320), (3240, 253472), (3456, 237630), (3560, 230688), (3840, 213867), (4005, 205056), (4272, 192240), (4320, 190104), (4806, 170880), (5184, 158420), (5340, 153792), (5696, 144180), (5760, 142578), (6408, 128160), (6480, 126736), (6912, 118815), (7120, 115344), (7209, 113920), (7921, 103680), (8010, 102528), (8544, 96120), (8640, 95052), (9612, 85440), (10368, 79210), (10680, 76896), (11392, 72090), (11520, 71289), (12015, 68352), (12816, 64080), (12960, 63368), (14240, 57672), (14418, 56960), (15842, 51840), (16020, 51264), (17088, 48060), (17280, 47526), (19224, 42720), (20736, 39605), (21360, 38448), (22784, 36045), (23763, 34560), (24030, 34176), (25632, 32040), (25920, 31684), (28480, 28836)]