257957280

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1$

素因数の和:348

約数の個数: 288

約数和(自身を含む): 1018652544

約数和(自身を除く): 760695264

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 157, 160, 163, 168, 180, 210, 224, 240, 252, 280, 288, 314, 315, 326, 336, 360, 420, 471, 480, 489, 504, 560, 628, 630, 652, 672, 720, 785, 815, 840, 942, 978, 1008, 1099, 1120, 1141, 1256, 1260, 1304, 1413, 1440, 1467, 1570, 1630, 1680, 1884, 1956, 2016, 2198, 2282, 2355, 2445, 2512, 2520, 2608, 2826, 2934, 3140, 3260, 3297, 3360, 3423, 3768, 3912, 4396, 4564, 4710, 4890, 5024, 5040, 5216, 5495, 5652, 5705, 5868, 6280, 6520, 6594, 6846, 7065, 7335, 7536, 7824, 8792, 9128, 9420, 9780, 9891, 10080, 10269, 10990, 11304, 11410, 11736, 12560, 13040, 13188, 13692, 14130, 14670, 15072, 15648, 16485, 17115, 17584, 18256, 18840, 19560, 19782, 20538, 21980, 22608, 22820, 23472, 25120, 25591, 26080, 26376, 27384, 28260, 29340, 32970, 34230, 35168, 36512, 37680, 39120, 39564, 41076, 43960, 45216, 45640, 46944, 49455, 51182, 51345, 52752, 54768, 56520, 58680, 65940, 68460, 75360, 76773, 78240, 79128, 82152, 87920, 91280, 98910, 102364, 102690, 105504, 109536, 113040, 117360, 127955, 131880, 136920, 153546, 158256, 164304, 175840, 179137, 182560, 197820, 204728, 205380, 226080, 230319, 234720, 255910, 263760, 273840, 307092, 316512, 328608, 358274, 383865, 395640, 409456, 410760, 460638, 511820, 527520, 537411, 547680, 614184, 716548, 767730, 791280, 818912, 821520, 895685, 921276, 1023640, 1074822, 1151595, 1228368, 1433096, 1535460, 1582560, 1612233, 1643040, 1791370, 1842552, 2047280, 2149644, 2303190, 2456736, 2687055, 2866192, 3070920, 3224466, 3582740, 3685104, 4094560, 4299288, 4606380, 5374110, 5732384, 6141840, 6448932, 7165480, 7370208, 8061165, 8598576, 9212760, 10748220, 12283680, 12897864, 14330960, 16122330, 17197152, 18425520, 21496440, 25795728, 28661920, 32244660, 36851040, 42992880, 51591456, 64489320, 85985760, 128978640, 257957280]

約数ペア:

[(1, 257957280), (2, 128978640), (3, 85985760), (4, 64489320), (5, 51591456), (6, 42992880), (7, 36851040), (8, 32244660), (9, 28661920), (10, 25795728), (12, 21496440), (14, 18425520), (15, 17197152), (16, 16122330), (18, 14330960), (20, 12897864), (21, 12283680), (24, 10748220), (28, 9212760), (30, 8598576), (32, 8061165), (35, 7370208), (36, 7165480), (40, 6448932), (42, 6141840), (45, 5732384), (48, 5374110), (56, 4606380), (60, 4299288), (63, 4094560), (70, 3685104), (72, 3582740), (80, 3224466), (84, 3070920), (90, 2866192), (96, 2687055), (105, 2456736), (112, 2303190), (120, 2149644), (126, 2047280), (140, 1842552), (144, 1791370), (157, 1643040), (160, 1612233), (163, 1582560), (168, 1535460), (180, 1433096), (210, 1228368), (224, 1151595), (240, 1074822), (252, 1023640), (280, 921276), (288, 895685), (314, 821520), (315, 818912), (326, 791280), (336, 767730), (360, 716548), (420, 614184), (471, 547680), (480, 537411), (489, 527520), (504, 511820), (560, 460638), (628, 410760), (630, 409456), (652, 395640), (672, 383865), (720, 358274), (785, 328608), (815, 316512), (840, 307092), (942, 273840), (978, 263760), (1008, 255910), (1099, 234720), (1120, 230319), (1141, 226080), (1256, 205380), (1260, 204728), (1304, 197820), (1413, 182560), (1440, 179137), (1467, 175840), (1570, 164304), (1630, 158256), (1680, 153546), (1884, 136920), (1956, 131880), (2016, 127955), (2198, 117360), (2282, 113040), (2355, 109536), (2445, 105504), (2512, 102690), (2520, 102364), (2608, 98910), (2826, 91280), (2934, 87920), (3140, 82152), (3260, 79128), (3297, 78240), (3360, 76773), (3423, 75360), (3768, 68460), (3912, 65940), (4396, 58680), (4564, 56520), (4710, 54768), (4890, 52752), (5024, 51345), (5040, 51182), (5216, 49455), (5495, 46944), (5652, 45640), (5705, 45216), (5868, 43960), (6280, 41076), (6520, 39564), (6594, 39120), (6846, 37680), (7065, 36512), (7335, 35168), (7536, 34230), (7824, 32970), (8792, 29340), (9128, 28260), (9420, 27384), (9780, 26376), (9891, 26080), (10080, 25591), (10269, 25120), (10990, 23472), (11304, 22820), (11410, 22608), (11736, 21980), (12560, 20538), (13040, 19782), (13188, 19560), (13692, 18840), (14130, 18256), (14670, 17584), (15072, 17115), (15648, 16485)]