78356880

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{2221}}^1$

素因数の和:2254

約数の個数: 180

約数和(自身を含む): 306249372

約数和(自身を除く): 227892492

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 360, 392, 420, 441, 490, 504, 560, 588, 630, 720, 735, 784, 840, 882, 980, 1008, 1176, 1260, 1470, 1680, 1764, 1960, 2205, 2221, 2352, 2520, 2940, 3528, 3920, 4410, 4442, 5040, 5880, 6663, 7056, 8820, 8884, 11105, 11760, 13326, 15547, 17640, 17768, 19989, 22210, 26652, 31094, 33315, 35280, 35536, 39978, 44420, 46641, 53304, 62188, 66630, 77735, 79956, 88840, 93282, 99945, 106608, 108829, 124376, 133260, 139923, 155470, 159912, 177680, 186564, 199890, 217658, 233205, 248752, 266520, 279846, 310940, 319824, 326487, 373128, 399780, 435316, 466410, 533040, 544145, 559692, 621880, 652974, 699615, 746256, 799560, 870632, 932820, 979461, 1088290, 1119384, 1243760, 1305948, 1399230, 1599120, 1632435, 1741264, 1865640, 1958922, 2176580, 2238768, 2611896, 2798460, 3264870, 3731280, 3917844, 4353160, 4897305, 5223792, 5596920, 6529740, 7835688, 8706320, 9794610, 11193840, 13059480, 15671376, 19589220, 26118960, 39178440, 78356880]

約数ペア:

[(1, 78356880), (2, 39178440), (3, 26118960), (4, 19589220), (5, 15671376), (6, 13059480), (7, 11193840), (8, 9794610), (9, 8706320), (10, 7835688), (12, 6529740), (14, 5596920), (15, 5223792), (16, 4897305), (18, 4353160), (20, 3917844), (21, 3731280), (24, 3264870), (28, 2798460), (30, 2611896), (35, 2238768), (36, 2176580), (40, 1958922), (42, 1865640), (45, 1741264), (48, 1632435), (49, 1599120), (56, 1399230), (60, 1305948), (63, 1243760), (70, 1119384), (72, 1088290), (80, 979461), (84, 932820), (90, 870632), (98, 799560), (105, 746256), (112, 699615), (120, 652974), (126, 621880), (140, 559692), (144, 544145), (147, 533040), (168, 466410), (180, 435316), (196, 399780), (210, 373128), (240, 326487), (245, 319824), (252, 310940), (280, 279846), (294, 266520), (315, 248752), (336, 233205), (360, 217658), (392, 199890), (420, 186564), (441, 177680), (490, 159912), (504, 155470), (560, 139923), (588, 133260), (630, 124376), (720, 108829), (735, 106608), (784, 99945), (840, 93282), (882, 88840), (980, 79956), (1008, 77735), (1176, 66630), (1260, 62188), (1470, 53304), (1680, 46641), (1764, 44420), (1960, 39978), (2205, 35536), (2221, 35280), (2352, 33315), (2520, 31094), (2940, 26652), (3528, 22210), (3920, 19989), (4410, 17768), (4442, 17640), (5040, 15547), (5880, 13326), (6663, 11760), (7056, 11105), (8820, 8884)]