257667480

素因数分解:

$2^3\times 3^5\times 5^1\times 7^2\times {\mathrm{541}}^1$

素因数の和:581

約数の個数: 288

約数和(自身を含む): 1012087440

約数和(自身を除く): 754419960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 49, 54, 56, 60, 63, 70, 72, 81, 84, 90, 98, 105, 108, 120, 126, 135, 140, 147, 162, 168, 180, 189, 196, 210, 216, 243, 245, 252, 270, 280, 294, 315, 324, 360, 378, 392, 405, 420, 441, 486, 490, 504, 540, 541, 567, 588, 630, 648, 735, 756, 810, 840, 882, 945, 972, 980, 1080, 1082, 1134, 1176, 1215, 1260, 1323, 1470, 1512, 1620, 1623, 1701, 1764, 1890, 1944, 1960, 2164, 2205, 2268, 2430, 2520, 2646, 2705, 2835, 2940, 3240, 3246, 3402, 3528, 3780, 3787, 3969, 4328, 4410, 4536, 4860, 4869, 5292, 5410, 5670, 5880, 6492, 6615, 6804, 7560, 7574, 7938, 8115, 8505, 8820, 9720, 9738, 10584, 10820, 11340, 11361, 11907, 12984, 13230, 13608, 14607, 15148, 15876, 16230, 17010, 17640, 18935, 19476, 19845, 21640, 22680, 22722, 23814, 24345, 26460, 26509, 29214, 30296, 31752, 32460, 34020, 34083, 37870, 38952, 39690, 43821, 45444, 47628, 48690, 52920, 53018, 56805, 58428, 59535, 64920, 68040, 68166, 73035, 75740, 79380, 79527, 87642, 90888, 95256, 97380, 102249, 106036, 113610, 116856, 119070, 131463, 132545, 136332, 146070, 151480, 158760, 159054, 170415, 175284, 194760, 204498, 212072, 219105, 227220, 238140, 238581, 262926, 265090, 272664, 292140, 306747, 318108, 340830, 350568, 397635, 408996, 438210, 454440, 476280, 477162, 511245, 525852, 530180, 584280, 613494, 636216, 657315, 681660, 715743, 795270, 817992, 876420, 920241, 954324, 1022490, 1051704, 1060360, 1192905, 1226988, 1314630, 1363320, 1431486, 1533735, 1590540, 1752840, 1840482, 1908648, 2044980, 2147229, 2385810, 2453976, 2629260, 2862972, 3067470, 3181080, 3578715, 3680964, 4089960, 4294458, 4601205, 4771620, 5258520, 5725944, 6134940, 6441687, 7157430, 7361928, 8588916, 9202410, 9543240, 10736145, 12269880, 12883374, 14314860, 17177832, 18404820, 21472290, 25766748, 28629720, 32208435, 36809640, 42944580, 51533496, 64416870, 85889160, 128833740, 257667480]

約数ペア:

[(1, 257667480), (2, 128833740), (3, 85889160), (4, 64416870), (5, 51533496), (6, 42944580), (7, 36809640), (8, 32208435), (9, 28629720), (10, 25766748), (12, 21472290), (14, 18404820), (15, 17177832), (18, 14314860), (20, 12883374), (21, 12269880), (24, 10736145), (27, 9543240), (28, 9202410), (30, 8588916), (35, 7361928), (36, 7157430), (40, 6441687), (42, 6134940), (45, 5725944), (49, 5258520), (54, 4771620), (56, 4601205), (60, 4294458), (63, 4089960), (70, 3680964), (72, 3578715), (81, 3181080), (84, 3067470), (90, 2862972), (98, 2629260), (105, 2453976), (108, 2385810), (120, 2147229), (126, 2044980), (135, 1908648), (140, 1840482), (147, 1752840), (162, 1590540), (168, 1533735), (180, 1431486), (189, 1363320), (196, 1314630), (210, 1226988), (216, 1192905), (243, 1060360), (245, 1051704), (252, 1022490), (270, 954324), (280, 920241), (294, 876420), (315, 817992), (324, 795270), (360, 715743), (378, 681660), (392, 657315), (405, 636216), (420, 613494), (441, 584280), (486, 530180), (490, 525852), (504, 511245), (540, 477162), (541, 476280), (567, 454440), (588, 438210), (630, 408996), (648, 397635), (735, 350568), (756, 340830), (810, 318108), (840, 306747), (882, 292140), (945, 272664), (972, 265090), (980, 262926), (1080, 238581), (1082, 238140), (1134, 227220), (1176, 219105), (1215, 212072), (1260, 204498), (1323, 194760), (1470, 175284), (1512, 170415), (1620, 159054), (1623, 158760), (1701, 151480), (1764, 146070), (1890, 136332), (1944, 132545), (1960, 131463), (2164, 119070), (2205, 116856), (2268, 113610), (2430, 106036), (2520, 102249), (2646, 97380), (2705, 95256), (2835, 90888), (2940, 87642), (3240, 79527), (3246, 79380), (3402, 75740), (3528, 73035), (3780, 68166), (3787, 68040), (3969, 64920), (4328, 59535), (4410, 58428), (4536, 56805), (4860, 53018), (4869, 52920), (5292, 48690), (5410, 47628), (5670, 45444), (5880, 43821), (6492, 39690), (6615, 38952), (6804, 37870), (7560, 34083), (7574, 34020), (7938, 32460), (8115, 31752), (8505, 30296), (8820, 29214), (9720, 26509), (9738, 26460), (10584, 24345), (10820, 23814), (11340, 22722), (11361, 22680), (11907, 21640), (12984, 19845), (13230, 19476), (13608, 18935), (14607, 17640), (15148, 17010), (15876, 16230)]