1990383840

素因数分解:

$2^5\times 3^5\times 5^1\times {\mathrm{51193}}^1$

素因数の和:51223

約数の個数: 144

約数和(自身を含む): 7043884848

約数和(自身を除く): 5053501008

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 243, 270, 288, 324, 360, 405, 432, 480, 486, 540, 648, 720, 810, 864, 972, 1080, 1215, 1296, 1440, 1620, 1944, 2160, 2430, 2592, 3240, 3888, 4320, 4860, 6480, 7776, 9720, 12960, 19440, 38880, 51193, 102386, 153579, 204772, 255965, 307158, 409544, 460737, 511930, 614316, 767895, 819088, 921474, 1023860, 1228632, 1382211, 1535790, 1638176, 1842948, 2047720, 2303685, 2457264, 2764422, 3071580, 3685896, 4095440, 4146633, 4607370, 4914528, 5528844, 6143160, 6911055, 7371792, 8190880, 8293266, 9214740, 11057688, 12286320, 12439899, 13822110, 14743584, 16586532, 18429480, 20733165, 22115376, 24572640, 24879798, 27644220, 33173064, 36858960, 41466330, 44230752, 49759596, 55288440, 62199495, 66346128, 73717920, 82932660, 99519192, 110576880, 124398990, 132692256, 165865320, 199038384, 221153760, 248797980, 331730640, 398076768, 497595960, 663461280, 995191920, 1990383840]

約数ペア:

[(1, 1990383840), (2, 995191920), (3, 663461280), (4, 497595960), (5, 398076768), (6, 331730640), (8, 248797980), (9, 221153760), (10, 199038384), (12, 165865320), (15, 132692256), (16, 124398990), (18, 110576880), (20, 99519192), (24, 82932660), (27, 73717920), (30, 66346128), (32, 62199495), (36, 55288440), (40, 49759596), (45, 44230752), (48, 41466330), (54, 36858960), (60, 33173064), (72, 27644220), (80, 24879798), (81, 24572640), (90, 22115376), (96, 20733165), (108, 18429480), (120, 16586532), (135, 14743584), (144, 13822110), (160, 12439899), (162, 12286320), (180, 11057688), (216, 9214740), (240, 8293266), (243, 8190880), (270, 7371792), (288, 6911055), (324, 6143160), (360, 5528844), (405, 4914528), (432, 4607370), (480, 4146633), (486, 4095440), (540, 3685896), (648, 3071580), (720, 2764422), (810, 2457264), (864, 2303685), (972, 2047720), (1080, 1842948), (1215, 1638176), (1296, 1535790), (1440, 1382211), (1620, 1228632), (1944, 1023860), (2160, 921474), (2430, 819088), (2592, 767895), (3240, 614316), (3888, 511930), (4320, 460737), (4860, 409544), (6480, 307158), (7776, 255965), (9720, 204772), (12960, 153579), (19440, 102386), (38880, 51193)]