257218560

素因数分解:

$2^{11}\times 3^2\times 5^1\times {\mathrm{2791}}^1$

素因数の和:2824

約数の個数: 144

約数和(自身を含む): 891792720

約数和(自身を除く): 634574160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 512, 576, 640, 720, 768, 960, 1024, 1152, 1280, 1440, 1536, 1920, 2048, 2304, 2560, 2791, 2880, 3072, 3840, 4608, 5120, 5582, 5760, 6144, 7680, 8373, 9216, 10240, 11164, 11520, 13955, 15360, 16746, 18432, 22328, 23040, 25119, 27910, 30720, 33492, 41865, 44656, 46080, 50238, 55820, 66984, 83730, 89312, 92160, 100476, 111640, 125595, 133968, 167460, 178624, 200952, 223280, 251190, 267936, 334920, 357248, 401904, 446560, 502380, 535872, 669840, 714496, 803808, 893120, 1004760, 1071744, 1339680, 1428992, 1607616, 1786240, 2009520, 2143488, 2679360, 2857984, 3215232, 3572480, 4019040, 4286976, 5358720, 5715968, 6430464, 7144960, 8038080, 8573952, 10717440, 12860928, 14289920, 16076160, 17147904, 21434880, 25721856, 28579840, 32152320, 42869760, 51443712, 64304640, 85739520, 128609280, 257218560]

約数ペア:

[(1, 257218560), (2, 128609280), (3, 85739520), (4, 64304640), (5, 51443712), (6, 42869760), (8, 32152320), (9, 28579840), (10, 25721856), (12, 21434880), (15, 17147904), (16, 16076160), (18, 14289920), (20, 12860928), (24, 10717440), (30, 8573952), (32, 8038080), (36, 7144960), (40, 6430464), (45, 5715968), (48, 5358720), (60, 4286976), (64, 4019040), (72, 3572480), (80, 3215232), (90, 2857984), (96, 2679360), (120, 2143488), (128, 2009520), (144, 1786240), (160, 1607616), (180, 1428992), (192, 1339680), (240, 1071744), (256, 1004760), (288, 893120), (320, 803808), (360, 714496), (384, 669840), (480, 535872), (512, 502380), (576, 446560), (640, 401904), (720, 357248), (768, 334920), (960, 267936), (1024, 251190), (1152, 223280), (1280, 200952), (1440, 178624), (1536, 167460), (1920, 133968), (2048, 125595), (2304, 111640), (2560, 100476), (2791, 92160), (2880, 89312), (3072, 83730), (3840, 66984), (4608, 55820), (5120, 50238), (5582, 46080), (5760, 44656), (6144, 41865), (7680, 33492), (8373, 30720), (9216, 27910), (10240, 25119), (11164, 23040), (11520, 22328), (13955, 18432), (15360, 16746)]