19981728

素因数分解:

$2^5\times 3^4\times {\mathrm{13}}^1\times {\mathrm{593}}^1$

素因数の和:628

約数の個数: 120

約数和(自身を含む): 63392868

約数和(自身を除く): 43411140

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 32, 36, 39, 48, 52, 54, 72, 78, 81, 96, 104, 108, 117, 144, 156, 162, 208, 216, 234, 288, 312, 324, 351, 416, 432, 468, 593, 624, 648, 702, 864, 936, 1053, 1186, 1248, 1296, 1404, 1779, 1872, 2106, 2372, 2592, 2808, 3558, 3744, 4212, 4744, 5337, 5616, 7116, 7709, 8424, 9488, 10674, 11232, 14232, 15418, 16011, 16848, 18976, 21348, 23127, 28464, 30836, 32022, 33696, 42696, 46254, 48033, 56928, 61672, 64044, 69381, 85392, 92508, 96066, 123344, 128088, 138762, 170784, 185016, 192132, 208143, 246688, 256176, 277524, 370032, 384264, 416286, 512352, 555048, 624429, 740064, 768528, 832572, 1110096, 1248858, 1537056, 1665144, 2220192, 2497716, 3330288, 4995432, 6660576, 9990864, 19981728]

約数ペア:

[(1, 19981728), (2, 9990864), (3, 6660576), (4, 4995432), (6, 3330288), (8, 2497716), (9, 2220192), (12, 1665144), (13, 1537056), (16, 1248858), (18, 1110096), (24, 832572), (26, 768528), (27, 740064), (32, 624429), (36, 555048), (39, 512352), (48, 416286), (52, 384264), (54, 370032), (72, 277524), (78, 256176), (81, 246688), (96, 208143), (104, 192132), (108, 185016), (117, 170784), (144, 138762), (156, 128088), (162, 123344), (208, 96066), (216, 92508), (234, 85392), (288, 69381), (312, 64044), (324, 61672), (351, 56928), (416, 48033), (432, 46254), (468, 42696), (593, 33696), (624, 32022), (648, 30836), (702, 28464), (864, 23127), (936, 21348), (1053, 18976), (1186, 16848), (1248, 16011), (1296, 15418), (1404, 14232), (1779, 11232), (1872, 10674), (2106, 9488), (2372, 8424), (2592, 7709), (2808, 7116), (3558, 5616), (3744, 5337), (4212, 4744)]