278384640

素因数分解:

$2^{12}\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1$

素因数の和:252

約数の個数: 208

約数和(自身を含む): 934167168

約数和(自身を除く): 655782528

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 64, 69, 80, 92, 96, 115, 120, 128, 138, 160, 184, 192, 197, 230, 240, 256, 276, 320, 345, 368, 384, 394, 460, 480, 512, 552, 591, 640, 690, 736, 768, 788, 920, 960, 985, 1024, 1104, 1182, 1280, 1380, 1472, 1536, 1576, 1840, 1920, 1970, 2048, 2208, 2364, 2560, 2760, 2944, 2955, 3072, 3152, 3680, 3840, 3940, 4096, 4416, 4531, 4728, 5120, 5520, 5888, 5910, 6144, 6304, 7360, 7680, 7880, 8832, 9062, 9456, 10240, 11040, 11776, 11820, 12288, 12608, 13593, 14720, 15360, 15760, 17664, 18124, 18912, 20480, 22080, 22655, 23552, 23640, 25216, 27186, 29440, 30720, 31520, 35328, 36248, 37824, 44160, 45310, 47104, 47280, 50432, 54372, 58880, 61440, 63040, 67965, 70656, 72496, 75648, 88320, 90620, 94208, 94560, 100864, 108744, 117760, 126080, 135930, 141312, 144992, 151296, 176640, 181240, 189120, 201728, 217488, 235520, 252160, 271860, 282624, 289984, 302592, 353280, 362480, 378240, 403456, 434976, 471040, 504320, 543720, 579968, 605184, 706560, 724960, 756480, 806912, 869952, 1008640, 1087440, 1159936, 1210368, 1413120, 1449920, 1512960, 1739904, 2017280, 2174880, 2319872, 2420736, 2899840, 3025920, 3479808, 4034560, 4349760, 4639744, 5799680, 6051840, 6959616, 8699520, 9279488, 11599360, 12103680, 13919232, 17399040, 18558976, 23198720, 27838464, 34798080, 46397440, 55676928, 69596160, 92794880, 139192320, 278384640]

約数ペア:

[(1, 278384640), (2, 139192320), (3, 92794880), (4, 69596160), (5, 55676928), (6, 46397440), (8, 34798080), (10, 27838464), (12, 23198720), (15, 18558976), (16, 17399040), (20, 13919232), (23, 12103680), (24, 11599360), (30, 9279488), (32, 8699520), (40, 6959616), (46, 6051840), (48, 5799680), (60, 4639744), (64, 4349760), (69, 4034560), (80, 3479808), (92, 3025920), (96, 2899840), (115, 2420736), (120, 2319872), (128, 2174880), (138, 2017280), (160, 1739904), (184, 1512960), (192, 1449920), (197, 1413120), (230, 1210368), (240, 1159936), (256, 1087440), (276, 1008640), (320, 869952), (345, 806912), (368, 756480), (384, 724960), (394, 706560), (460, 605184), (480, 579968), (512, 543720), (552, 504320), (591, 471040), (640, 434976), (690, 403456), (736, 378240), (768, 362480), (788, 353280), (920, 302592), (960, 289984), (985, 282624), (1024, 271860), (1104, 252160), (1182, 235520), (1280, 217488), (1380, 201728), (1472, 189120), (1536, 181240), (1576, 176640), (1840, 151296), (1920, 144992), (1970, 141312), (2048, 135930), (2208, 126080), (2364, 117760), (2560, 108744), (2760, 100864), (2944, 94560), (2955, 94208), (3072, 90620), (3152, 88320), (3680, 75648), (3840, 72496), (3940, 70656), (4096, 67965), (4416, 63040), (4531, 61440), (4728, 58880), (5120, 54372), (5520, 50432), (5888, 47280), (5910, 47104), (6144, 45310), (6304, 44160), (7360, 37824), (7680, 36248), (7880, 35328), (8832, 31520), (9062, 30720), (9456, 29440), (10240, 27186), (11040, 25216), (11776, 23640), (11820, 23552), (12288, 22655), (12608, 22080), (13593, 20480), (14720, 18912), (15360, 18124), (15760, 17664)]