20815282320

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{57097}}^1$

素因数の和:57158

約数の個数: 240

約数和(自身を含む): 77485183488

約数和(自身を除く): 56669901168

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 35, 40, 42, 48, 49, 56, 60, 62, 70, 80, 84, 93, 98, 105, 112, 120, 124, 140, 147, 155, 168, 186, 196, 210, 217, 240, 245, 248, 280, 294, 310, 336, 372, 392, 420, 434, 465, 490, 496, 560, 588, 620, 651, 735, 744, 784, 840, 868, 930, 980, 1085, 1176, 1240, 1302, 1470, 1488, 1519, 1680, 1736, 1860, 1960, 2170, 2352, 2480, 2604, 2940, 3038, 3255, 3472, 3720, 3920, 4340, 4557, 5208, 5880, 6076, 6510, 7440, 7595, 8680, 9114, 10416, 11760, 12152, 13020, 15190, 17360, 18228, 22785, 24304, 26040, 30380, 36456, 45570, 52080, 57097, 60760, 72912, 91140, 114194, 121520, 171291, 182280, 228388, 285485, 342582, 364560, 399679, 456776, 570970, 685164, 799358, 856455, 913552, 1141940, 1199037, 1370328, 1598716, 1712910, 1770007, 1998395, 2283880, 2398074, 2740656, 2797753, 3197432, 3425820, 3540014, 3996790, 4567760, 4796148, 5310021, 5595506, 5995185, 6394864, 6851640, 7080028, 7993580, 8393259, 8850035, 9592296, 10620042, 11191012, 11990370, 12390049, 13703280, 13988765, 14160056, 15987160, 16786518, 17700070, 19184592, 21240084, 22382024, 23980740, 24780098, 26550105, 27977530, 28320112, 31974320, 33573036, 35400140, 37170147, 41966295, 42480168, 44764048, 47961480, 49560196, 53100210, 55955060, 61950245, 67146072, 70800280, 74340294, 83932590, 84960336, 86730343, 95922960, 99120392, 106200420, 111910120, 123900490, 134292144, 141600560, 148680588, 167865180, 173460686, 185850735, 198240784, 212400840, 223820240, 247800980, 260191029, 297361176, 335730360, 346921372, 371701470, 424801680, 433651715, 495601960, 520382058, 594722352, 671460720, 693842744, 743402940, 867303430, 991203920, 1040764116, 1300955145, 1387685488, 1486805880, 1734606860, 2081528232, 2601910290, 2973611760, 3469213720, 4163056464, 5203820580, 6938427440, 10407641160, 20815282320]

約数ペア:

[(1, 20815282320), (2, 10407641160), (3, 6938427440), (4, 5203820580), (5, 4163056464), (6, 3469213720), (7, 2973611760), (8, 2601910290), (10, 2081528232), (12, 1734606860), (14, 1486805880), (15, 1387685488), (16, 1300955145), (20, 1040764116), (21, 991203920), (24, 867303430), (28, 743402940), (30, 693842744), (31, 671460720), (35, 594722352), (40, 520382058), (42, 495601960), (48, 433651715), (49, 424801680), (56, 371701470), (60, 346921372), (62, 335730360), (70, 297361176), (80, 260191029), (84, 247800980), (93, 223820240), (98, 212400840), (105, 198240784), (112, 185850735), (120, 173460686), (124, 167865180), (140, 148680588), (147, 141600560), (155, 134292144), (168, 123900490), (186, 111910120), (196, 106200420), (210, 99120392), (217, 95922960), (240, 86730343), (245, 84960336), (248, 83932590), (280, 74340294), (294, 70800280), (310, 67146072), (336, 61950245), (372, 55955060), (392, 53100210), (420, 49560196), (434, 47961480), (465, 44764048), (490, 42480168), (496, 41966295), (560, 37170147), (588, 35400140), (620, 33573036), (651, 31974320), (735, 28320112), (744, 27977530), (784, 26550105), (840, 24780098), (868, 23980740), (930, 22382024), (980, 21240084), (1085, 19184592), (1176, 17700070), (1240, 16786518), (1302, 15987160), (1470, 14160056), (1488, 13988765), (1519, 13703280), (1680, 12390049), (1736, 11990370), (1860, 11191012), (1960, 10620042), (2170, 9592296), (2352, 8850035), (2480, 8393259), (2604, 7993580), (2940, 7080028), (3038, 6851640), (3255, 6394864), (3472, 5995185), (3720, 5595506), (3920, 5310021), (4340, 4796148), (4557, 4567760), (5208, 3996790), (5880, 3540014), (6076, 3425820), (6510, 3197432), (7440, 2797753), (7595, 2740656), (8680, 2398074), (9114, 2283880), (10416, 1998395), (11760, 1770007), (12152, 1712910), (13020, 1598716), (15190, 1370328), (17360, 1199037), (18228, 1141940), (22785, 913552), (24304, 856455), (26040, 799358), (30380, 685164), (36456, 570970), (45570, 456776), (52080, 399679), (57097, 364560), (60760, 342582), (72912, 285485), (91140, 228388), (114194, 182280), (121520, 171291)]