257927520

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{383}}^1$

素因数の和:485

約数の個数: 192

約数和(自身を含む): 863944704

約数和(自身を除く): 606017184

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 61, 69, 80, 92, 96, 115, 120, 122, 138, 160, 183, 184, 230, 240, 244, 276, 305, 345, 366, 368, 383, 460, 480, 488, 552, 610, 690, 732, 736, 766, 915, 920, 976, 1104, 1149, 1220, 1380, 1403, 1464, 1532, 1830, 1840, 1915, 1952, 2208, 2298, 2440, 2760, 2806, 2928, 3064, 3660, 3680, 3830, 4209, 4596, 4880, 5520, 5612, 5745, 5856, 6128, 7015, 7320, 7660, 8418, 8809, 9192, 9760, 11040, 11224, 11490, 12256, 14030, 14640, 15320, 16836, 17618, 18384, 21045, 22448, 22980, 23363, 26427, 28060, 29280, 30640, 33672, 35236, 36768, 42090, 44045, 44896, 45960, 46726, 52854, 56120, 61280, 67344, 70089, 70472, 84180, 88090, 91920, 93452, 105708, 112240, 116815, 132135, 134688, 140178, 140944, 168360, 176180, 183840, 186904, 211416, 224480, 233630, 264270, 280356, 281888, 336720, 350445, 352360, 373808, 422832, 467260, 528540, 537349, 560712, 673440, 700890, 704720, 747616, 845664, 934520, 1057080, 1074698, 1121424, 1401780, 1409440, 1612047, 1869040, 2114160, 2149396, 2242848, 2686745, 2803560, 3224094, 3738080, 4228320, 4298792, 5373490, 5607120, 6448188, 8060235, 8597584, 10746980, 11214240, 12896376, 16120470, 17195168, 21493960, 25792752, 32240940, 42987920, 51585504, 64481880, 85975840, 128963760, 257927520]

約数ペア:

[(1, 257927520), (2, 128963760), (3, 85975840), (4, 64481880), (5, 51585504), (6, 42987920), (8, 32240940), (10, 25792752), (12, 21493960), (15, 17195168), (16, 16120470), (20, 12896376), (23, 11214240), (24, 10746980), (30, 8597584), (32, 8060235), (40, 6448188), (46, 5607120), (48, 5373490), (60, 4298792), (61, 4228320), (69, 3738080), (80, 3224094), (92, 2803560), (96, 2686745), (115, 2242848), (120, 2149396), (122, 2114160), (138, 1869040), (160, 1612047), (183, 1409440), (184, 1401780), (230, 1121424), (240, 1074698), (244, 1057080), (276, 934520), (305, 845664), (345, 747616), (366, 704720), (368, 700890), (383, 673440), (460, 560712), (480, 537349), (488, 528540), (552, 467260), (610, 422832), (690, 373808), (732, 352360), (736, 350445), (766, 336720), (915, 281888), (920, 280356), (976, 264270), (1104, 233630), (1149, 224480), (1220, 211416), (1380, 186904), (1403, 183840), (1464, 176180), (1532, 168360), (1830, 140944), (1840, 140178), (1915, 134688), (1952, 132135), (2208, 116815), (2298, 112240), (2440, 105708), (2760, 93452), (2806, 91920), (2928, 88090), (3064, 84180), (3660, 70472), (3680, 70089), (3830, 67344), (4209, 61280), (4596, 56120), (4880, 52854), (5520, 46726), (5612, 45960), (5745, 44896), (5856, 44045), (6128, 42090), (7015, 36768), (7320, 35236), (7660, 33672), (8418, 30640), (8809, 29280), (9192, 28060), (9760, 26427), (11040, 23363), (11224, 22980), (11490, 22448), (12256, 21045), (14030, 18384), (14640, 17618), (15320, 16836)]