18231840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1151}}^1$

素因数の和:1183

約数の個数: 144

約数和(自身を含む): 67931136

約数和(自身を除く): 49699296

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 96, 99, 110, 120, 132, 144, 160, 165, 176, 180, 198, 220, 240, 264, 288, 330, 352, 360, 396, 440, 480, 495, 528, 660, 720, 792, 880, 990, 1056, 1151, 1320, 1440, 1584, 1760, 1980, 2302, 2640, 3168, 3453, 3960, 4604, 5280, 5755, 6906, 7920, 9208, 10359, 11510, 12661, 13812, 15840, 17265, 18416, 20718, 23020, 25322, 27624, 34530, 36832, 37983, 41436, 46040, 50644, 51795, 55248, 63305, 69060, 75966, 82872, 92080, 101288, 103590, 110496, 113949, 126610, 138120, 151932, 165744, 184160, 189915, 202576, 207180, 227898, 253220, 276240, 303864, 331488, 379830, 405152, 414360, 455796, 506440, 552480, 569745, 607728, 759660, 828720, 911592, 1012880, 1139490, 1215456, 1519320, 1657440, 1823184, 2025760, 2278980, 3038640, 3646368, 4557960, 6077280, 9115920, 18231840]

約数ペア:

[(1, 18231840), (2, 9115920), (3, 6077280), (4, 4557960), (5, 3646368), (6, 3038640), (8, 2278980), (9, 2025760), (10, 1823184), (11, 1657440), (12, 1519320), (15, 1215456), (16, 1139490), (18, 1012880), (20, 911592), (22, 828720), (24, 759660), (30, 607728), (32, 569745), (33, 552480), (36, 506440), (40, 455796), (44, 414360), (45, 405152), (48, 379830), (55, 331488), (60, 303864), (66, 276240), (72, 253220), (80, 227898), (88, 207180), (90, 202576), (96, 189915), (99, 184160), (110, 165744), (120, 151932), (132, 138120), (144, 126610), (160, 113949), (165, 110496), (176, 103590), (180, 101288), (198, 92080), (220, 82872), (240, 75966), (264, 69060), (288, 63305), (330, 55248), (352, 51795), (360, 50644), (396, 46040), (440, 41436), (480, 37983), (495, 36832), (528, 34530), (660, 27624), (720, 25322), (792, 23020), (880, 20718), (990, 18416), (1056, 17265), (1151, 15840), (1320, 13812), (1440, 12661), (1584, 11510), (1760, 10359), (1980, 9208), (2302, 7920), (2640, 6906), (3168, 5755), (3453, 5280), (3960, 4604)]