255232320

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1999}}^1$

素因数の和:2045

約数の個数: 224

約数和(自身を含む): 975360000

約数和(自身を除く): 720127680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 32, 35, 38, 40, 42, 48, 56, 57, 60, 64, 70, 76, 80, 84, 95, 96, 105, 112, 114, 120, 133, 140, 152, 160, 168, 190, 192, 210, 224, 228, 240, 266, 280, 285, 304, 320, 336, 380, 399, 420, 448, 456, 480, 532, 560, 570, 608, 665, 672, 760, 798, 840, 912, 960, 1064, 1120, 1140, 1216, 1330, 1344, 1520, 1596, 1680, 1824, 1995, 1999, 2128, 2240, 2280, 2660, 3040, 3192, 3360, 3648, 3990, 3998, 4256, 4560, 5320, 5997, 6080, 6384, 6720, 7980, 7996, 8512, 9120, 9995, 10640, 11994, 12768, 13993, 15960, 15992, 18240, 19990, 21280, 23988, 25536, 27986, 29985, 31920, 31984, 37981, 39980, 41979, 42560, 47976, 55972, 59970, 63840, 63968, 69965, 75962, 79960, 83958, 95952, 111944, 113943, 119940, 127680, 127936, 139930, 151924, 159920, 167916, 189905, 191904, 209895, 223888, 227886, 239880, 265867, 279860, 303848, 319840, 335832, 379810, 383808, 419790, 447776, 455772, 479760, 531734, 559720, 569715, 607696, 639680, 671664, 759620, 797601, 839580, 895552, 911544, 959520, 1063468, 1119440, 1139430, 1215392, 1329335, 1343328, 1519240, 1595202, 1679160, 1823088, 1919040, 2126936, 2238880, 2278860, 2430784, 2658670, 2686656, 3038480, 3190404, 3358320, 3646176, 3988005, 4253872, 4477760, 4557720, 5317340, 6076960, 6380808, 6716640, 7292352, 7976010, 8507744, 9115440, 10634680, 12153920, 12761616, 13433280, 15952020, 17015488, 18230880, 21269360, 25523232, 31904040, 36461760, 42538720, 51046464, 63808080, 85077440, 127616160, 255232320]

約数ペア:

[(1, 255232320), (2, 127616160), (3, 85077440), (4, 63808080), (5, 51046464), (6, 42538720), (7, 36461760), (8, 31904040), (10, 25523232), (12, 21269360), (14, 18230880), (15, 17015488), (16, 15952020), (19, 13433280), (20, 12761616), (21, 12153920), (24, 10634680), (28, 9115440), (30, 8507744), (32, 7976010), (35, 7292352), (38, 6716640), (40, 6380808), (42, 6076960), (48, 5317340), (56, 4557720), (57, 4477760), (60, 4253872), (64, 3988005), (70, 3646176), (76, 3358320), (80, 3190404), (84, 3038480), (95, 2686656), (96, 2658670), (105, 2430784), (112, 2278860), (114, 2238880), (120, 2126936), (133, 1919040), (140, 1823088), (152, 1679160), (160, 1595202), (168, 1519240), (190, 1343328), (192, 1329335), (210, 1215392), (224, 1139430), (228, 1119440), (240, 1063468), (266, 959520), (280, 911544), (285, 895552), (304, 839580), (320, 797601), (336, 759620), (380, 671664), (399, 639680), (420, 607696), (448, 569715), (456, 559720), (480, 531734), (532, 479760), (560, 455772), (570, 447776), (608, 419790), (665, 383808), (672, 379810), (760, 335832), (798, 319840), (840, 303848), (912, 279860), (960, 265867), (1064, 239880), (1120, 227886), (1140, 223888), (1216, 209895), (1330, 191904), (1344, 189905), (1520, 167916), (1596, 159920), (1680, 151924), (1824, 139930), (1995, 127936), (1999, 127680), (2128, 119940), (2240, 113943), (2280, 111944), (2660, 95952), (3040, 83958), (3192, 79960), (3360, 75962), (3648, 69965), (3990, 63968), (3998, 63840), (4256, 59970), (4560, 55972), (5320, 47976), (5997, 42560), (6080, 41979), (6384, 39980), (6720, 37981), (7980, 31984), (7996, 31920), (8512, 29985), (9120, 27986), (9995, 25536), (10640, 23988), (11994, 21280), (12768, 19990), (13993, 18240), (15960, 15992)]