204123240

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{251}}^2$

素因数の和:525

約数の個数: 120

約数和(自身を含む): 688825170

約数和(自身を除く): 484701930

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 251, 270, 324, 360, 405, 502, 540, 648, 753, 810, 1004, 1080, 1255, 1506, 1620, 2008, 2259, 2510, 3012, 3240, 3765, 4518, 5020, 6024, 6777, 7530, 9036, 10040, 11295, 13554, 15060, 18072, 20331, 22590, 27108, 30120, 33885, 40662, 45180, 54216, 63001, 67770, 81324, 90360, 101655, 126002, 135540, 162648, 189003, 203310, 252004, 271080, 315005, 378006, 406620, 504008, 567009, 630010, 756012, 813240, 945015, 1134018, 1260020, 1512024, 1701027, 1890030, 2268036, 2520040, 2835045, 3402054, 3780060, 4536072, 5103081, 5670090, 6804108, 7560120, 8505135, 10206162, 11340180, 13608216, 17010270, 20412324, 22680360, 25515405, 34020540, 40824648, 51030810, 68041080, 102061620, 204123240]

約数ペア:

[(1, 204123240), (2, 102061620), (3, 68041080), (4, 51030810), (5, 40824648), (6, 34020540), (8, 25515405), (9, 22680360), (10, 20412324), (12, 17010270), (15, 13608216), (18, 11340180), (20, 10206162), (24, 8505135), (27, 7560120), (30, 6804108), (36, 5670090), (40, 5103081), (45, 4536072), (54, 3780060), (60, 3402054), (72, 2835045), (81, 2520040), (90, 2268036), (108, 1890030), (120, 1701027), (135, 1512024), (162, 1260020), (180, 1134018), (216, 945015), (251, 813240), (270, 756012), (324, 630010), (360, 567009), (405, 504008), (502, 406620), (540, 378006), (648, 315005), (753, 271080), (810, 252004), (1004, 203310), (1080, 189003), (1255, 162648), (1506, 135540), (1620, 126002), (2008, 101655), (2259, 90360), (2510, 81324), (3012, 67770), (3240, 63001), (3765, 54216), (4518, 45180), (5020, 40662), (6024, 33885), (6777, 30120), (7530, 27108), (9036, 22590), (10040, 20331), (11295, 18072), (13554, 15060)]