81596160

素因数分解:

$2^8\times 3^4\times 5^1\times {\mathrm{787}}^1$

素因数の和:820

約数の個数: 180

約数和(自身を含む): 292336968

約数和(自身を除く): 210740808

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, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 256, 270, 288, 320, 324, 360, 384, 405, 432, 480, 540, 576, 640, 648, 720, 768, 787, 810, 864, 960, 1080, 1152, 1280, 1296, 1440, 1574, 1620, 1728, 1920, 2160, 2304, 2361, 2592, 2880, 3148, 3240, 3456, 3840, 3935, 4320, 4722, 5184, 5760, 6296, 6480, 6912, 7083, 7870, 8640, 9444, 10368, 11520, 11805, 12592, 12960, 14166, 15740, 17280, 18888, 20736, 21249, 23610, 25184, 25920, 28332, 31480, 34560, 35415, 37776, 42498, 47220, 50368, 51840, 56664, 62960, 63747, 70830, 75552, 84996, 94440, 100736, 103680, 106245, 113328, 125920, 127494, 141660, 151104, 169992, 188880, 201472, 212490, 226656, 251840, 254988, 283320, 302208, 318735, 339984, 377760, 424980, 453312, 503680, 509976, 566640, 604416, 637470, 679968, 755520, 849960, 906624, 1007360, 1019952, 1133280, 1274940, 1359936, 1511040, 1699920, 1813248, 2039904, 2266560, 2549880, 2719872, 3022080, 3399840, 4079808, 4533120, 5099760, 5439744, 6799680, 8159616, 9066240, 10199520, 13599360, 16319232, 20399040, 27198720, 40798080, 81596160]

約数ペア:

[(1, 81596160), (2, 40798080), (3, 27198720), (4, 20399040), (5, 16319232), (6, 13599360), (8, 10199520), (9, 9066240), (10, 8159616), (12, 6799680), (15, 5439744), (16, 5099760), (18, 4533120), (20, 4079808), (24, 3399840), (27, 3022080), (30, 2719872), (32, 2549880), (36, 2266560), (40, 2039904), (45, 1813248), (48, 1699920), (54, 1511040), (60, 1359936), (64, 1274940), (72, 1133280), (80, 1019952), (81, 1007360), (90, 906624), (96, 849960), (108, 755520), (120, 679968), (128, 637470), (135, 604416), (144, 566640), (160, 509976), (162, 503680), (180, 453312), (192, 424980), (216, 377760), (240, 339984), (256, 318735), (270, 302208), (288, 283320), (320, 254988), (324, 251840), (360, 226656), (384, 212490), (405, 201472), (432, 188880), (480, 169992), (540, 151104), (576, 141660), (640, 127494), (648, 125920), (720, 113328), (768, 106245), (787, 103680), (810, 100736), (864, 94440), (960, 84996), (1080, 75552), (1152, 70830), (1280, 63747), (1296, 62960), (1440, 56664), (1574, 51840), (1620, 50368), (1728, 47220), (1920, 42498), (2160, 37776), (2304, 35415), (2361, 34560), (2592, 31480), (2880, 28332), (3148, 25920), (3240, 25184), (3456, 23610), (3840, 21249), (3935, 20736), (4320, 18888), (4722, 17280), (5184, 15740), (5760, 14166), (6296, 12960), (6480, 12592), (6912, 11805), (7083, 11520), (7870, 10368), (8640, 9444)]