257718240

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{353}}^1$

素因数の和:403

約数の個数: 288

約数和(自身を含む): 979503840

約数和(自身を除く): 721785600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 90, 96, 104, 108, 117, 120, 130, 135, 144, 156, 160, 169, 180, 195, 208, 216, 234, 240, 260, 270, 288, 312, 338, 351, 353, 360, 390, 416, 432, 468, 480, 507, 520, 540, 585, 624, 676, 702, 706, 720, 780, 845, 864, 936, 1014, 1040, 1059, 1080, 1170, 1248, 1352, 1404, 1412, 1440, 1521, 1560, 1690, 1755, 1765, 1872, 2028, 2080, 2118, 2160, 2340, 2535, 2704, 2808, 2824, 3042, 3120, 3177, 3380, 3510, 3530, 3744, 4056, 4236, 4320, 4563, 4589, 4680, 5070, 5295, 5408, 5616, 5648, 6084, 6240, 6354, 6760, 7020, 7060, 7605, 8112, 8472, 9126, 9178, 9360, 9531, 10140, 10590, 11232, 11296, 12168, 12708, 13520, 13767, 14040, 14120, 15210, 15885, 16224, 16944, 18252, 18356, 18720, 19062, 20280, 21180, 22815, 22945, 24336, 25416, 27040, 27534, 28080, 28240, 30420, 31770, 33888, 36504, 36712, 38124, 40560, 41301, 42360, 45630, 45890, 47655, 48672, 50832, 55068, 56160, 56480, 59657, 60840, 63540, 68835, 73008, 73424, 76248, 81120, 82602, 84720, 91260, 91780, 95310, 101664, 110136, 119314, 121680, 123903, 127080, 137670, 146016, 146848, 152496, 165204, 169440, 178971, 182520, 183560, 190620, 206505, 220272, 238628, 243360, 247806, 254160, 275340, 298285, 304992, 330408, 357942, 365040, 367120, 381240, 413010, 440544, 477256, 495612, 508320, 536913, 550680, 596570, 619515, 660816, 715884, 730080, 734240, 762480, 826020, 894855, 954512, 991224, 1073826, 1101360, 1193140, 1239030, 1321632, 1431768, 1524960, 1610739, 1652040, 1789710, 1909024, 1982448, 2147652, 2202720, 2386280, 2478060, 2684565, 2863536, 3221478, 3304080, 3579420, 3964896, 4295304, 4772560, 4956120, 5369130, 5727072, 6442956, 6608160, 7158840, 8053695, 8590608, 9545120, 9912240, 10738260, 12885912, 14317680, 16107390, 17181216, 19824480, 21476520, 25771824, 28635360, 32214780, 42953040, 51543648, 64429560, 85906080, 128859120, 257718240]

約数ペア:

[(1, 257718240), (2, 128859120), (3, 85906080), (4, 64429560), (5, 51543648), (6, 42953040), (8, 32214780), (9, 28635360), (10, 25771824), (12, 21476520), (13, 19824480), (15, 17181216), (16, 16107390), (18, 14317680), (20, 12885912), (24, 10738260), (26, 9912240), (27, 9545120), (30, 8590608), (32, 8053695), (36, 7158840), (39, 6608160), (40, 6442956), (45, 5727072), (48, 5369130), (52, 4956120), (54, 4772560), (60, 4295304), (65, 3964896), (72, 3579420), (78, 3304080), (80, 3221478), (90, 2863536), (96, 2684565), (104, 2478060), (108, 2386280), (117, 2202720), (120, 2147652), (130, 1982448), (135, 1909024), (144, 1789710), (156, 1652040), (160, 1610739), (169, 1524960), (180, 1431768), (195, 1321632), (208, 1239030), (216, 1193140), (234, 1101360), (240, 1073826), (260, 991224), (270, 954512), (288, 894855), (312, 826020), (338, 762480), (351, 734240), (353, 730080), (360, 715884), (390, 660816), (416, 619515), (432, 596570), (468, 550680), (480, 536913), (507, 508320), (520, 495612), (540, 477256), (585, 440544), (624, 413010), (676, 381240), (702, 367120), (706, 365040), (720, 357942), (780, 330408), (845, 304992), (864, 298285), (936, 275340), (1014, 254160), (1040, 247806), (1059, 243360), (1080, 238628), (1170, 220272), (1248, 206505), (1352, 190620), (1404, 183560), (1412, 182520), (1440, 178971), (1521, 169440), (1560, 165204), (1690, 152496), (1755, 146848), (1765, 146016), (1872, 137670), (2028, 127080), (2080, 123903), (2118, 121680), (2160, 119314), (2340, 110136), (2535, 101664), (2704, 95310), (2808, 91780), (2824, 91260), (3042, 84720), (3120, 82602), (3177, 81120), (3380, 76248), (3510, 73424), (3530, 73008), (3744, 68835), (4056, 63540), (4236, 60840), (4320, 59657), (4563, 56480), (4589, 56160), (4680, 55068), (5070, 50832), (5295, 48672), (5408, 47655), (5616, 45890), (5648, 45630), (6084, 42360), (6240, 41301), (6354, 40560), (6760, 38124), (7020, 36712), (7060, 36504), (7605, 33888), (8112, 31770), (8472, 30420), (9126, 28240), (9178, 28080), (9360, 27534), (9531, 27040), (10140, 25416), (10590, 24336), (11232, 22945), (11296, 22815), (12168, 21180), (12708, 20280), (13520, 19062), (13767, 18720), (14040, 18356), (14120, 18252), (15210, 16944), (15885, 16224)]