257528880

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1381}}^1$

素因数の和:1444

約数の個数: 240

約数和(自身を含む): 1015869504

約数和(自身を除く): 758340624

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, 37, 40, 42, 45, 48, 56, 60, 63, 70, 72, 74, 80, 84, 90, 105, 111, 112, 120, 126, 140, 144, 148, 168, 180, 185, 210, 222, 240, 252, 259, 280, 296, 315, 333, 336, 360, 370, 420, 444, 504, 518, 555, 560, 592, 630, 666, 720, 740, 777, 840, 888, 1008, 1036, 1110, 1260, 1295, 1332, 1381, 1480, 1554, 1665, 1680, 1776, 2072, 2220, 2331, 2520, 2590, 2664, 2762, 2960, 3108, 3330, 3885, 4143, 4144, 4440, 4662, 5040, 5180, 5328, 5524, 6216, 6660, 6905, 7770, 8286, 8880, 9324, 9667, 10360, 11048, 11655, 12429, 12432, 13320, 13810, 15540, 16572, 18648, 19334, 20715, 20720, 22096, 23310, 24858, 26640, 27620, 29001, 31080, 33144, 37296, 38668, 41430, 46620, 48335, 49716, 51097, 55240, 58002, 62145, 62160, 66288, 77336, 82860, 87003, 93240, 96670, 99432, 102194, 110480, 116004, 124290, 145005, 153291, 154672, 165720, 174006, 186480, 193340, 198864, 204388, 232008, 248580, 255485, 290010, 306582, 331440, 348012, 357679, 386680, 408776, 435015, 459873, 464016, 497160, 510970, 580020, 613164, 696024, 715358, 766455, 773360, 817552, 870030, 919746, 994320, 1021940, 1073037, 1160040, 1226328, 1392048, 1430716, 1532910, 1740060, 1788395, 1839492, 2043880, 2146074, 2299365, 2320080, 2452656, 2861432, 3065820, 3219111, 3480120, 3576790, 3678984, 4087760, 4292148, 4598730, 5365185, 5722864, 6131640, 6438222, 6960240, 7153580, 7357968, 8584296, 9197460, 10730370, 12263280, 12876444, 14307160, 16095555, 17168592, 18394920, 21460740, 25752888, 28614320, 32191110, 36789840, 42921480, 51505776, 64382220, 85842960, 128764440, 257528880]

約数ペア:

[(1, 257528880), (2, 128764440), (3, 85842960), (4, 64382220), (5, 51505776), (6, 42921480), (7, 36789840), (8, 32191110), (9, 28614320), (10, 25752888), (12, 21460740), (14, 18394920), (15, 17168592), (16, 16095555), (18, 14307160), (20, 12876444), (21, 12263280), (24, 10730370), (28, 9197460), (30, 8584296), (35, 7357968), (36, 7153580), (37, 6960240), (40, 6438222), (42, 6131640), (45, 5722864), (48, 5365185), (56, 4598730), (60, 4292148), (63, 4087760), (70, 3678984), (72, 3576790), (74, 3480120), (80, 3219111), (84, 3065820), (90, 2861432), (105, 2452656), (111, 2320080), (112, 2299365), (120, 2146074), (126, 2043880), (140, 1839492), (144, 1788395), (148, 1740060), (168, 1532910), (180, 1430716), (185, 1392048), (210, 1226328), (222, 1160040), (240, 1073037), (252, 1021940), (259, 994320), (280, 919746), (296, 870030), (315, 817552), (333, 773360), (336, 766455), (360, 715358), (370, 696024), (420, 613164), (444, 580020), (504, 510970), (518, 497160), (555, 464016), (560, 459873), (592, 435015), (630, 408776), (666, 386680), (720, 357679), (740, 348012), (777, 331440), (840, 306582), (888, 290010), (1008, 255485), (1036, 248580), (1110, 232008), (1260, 204388), (1295, 198864), (1332, 193340), (1381, 186480), (1480, 174006), (1554, 165720), (1665, 154672), (1680, 153291), (1776, 145005), (2072, 124290), (2220, 116004), (2331, 110480), (2520, 102194), (2590, 99432), (2664, 96670), (2762, 93240), (2960, 87003), (3108, 82860), (3330, 77336), (3885, 66288), (4143, 62160), (4144, 62145), (4440, 58002), (4662, 55240), (5040, 51097), (5180, 49716), (5328, 48335), (5524, 46620), (6216, 41430), (6660, 38668), (6905, 37296), (7770, 33144), (8286, 31080), (8880, 29001), (9324, 27620), (9667, 26640), (10360, 24858), (11048, 23310), (11655, 22096), (12429, 20720), (12432, 20715), (13320, 19334), (13810, 18648), (15540, 16572)]