81737280

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{281}}^1$

素因数の和:405

約数の個数: 168

約数和(自身を含む): 284936184

約数和(自身を除く): 203198904

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 101, 120, 144, 160, 180, 192, 202, 240, 281, 288, 303, 320, 360, 404, 480, 505, 562, 576, 606, 720, 808, 843, 909, 960, 1010, 1124, 1212, 1405, 1440, 1515, 1616, 1686, 1818, 2020, 2248, 2424, 2529, 2810, 2880, 3030, 3232, 3372, 3636, 4040, 4215, 4496, 4545, 4848, 5058, 5620, 6060, 6464, 6744, 7272, 8080, 8430, 8992, 9090, 9696, 10116, 11240, 12120, 12645, 13488, 14544, 16160, 16860, 17984, 18180, 19392, 20232, 22480, 24240, 25290, 26976, 28381, 29088, 32320, 33720, 36360, 40464, 44960, 48480, 50580, 53952, 56762, 58176, 67440, 72720, 80928, 85143, 89920, 96960, 101160, 113524, 134880, 141905, 145440, 161856, 170286, 202320, 227048, 255429, 269760, 283810, 290880, 340572, 404640, 425715, 454096, 510858, 567620, 681144, 809280, 851430, 908192, 1021716, 1135240, 1277145, 1362288, 1702860, 1816384, 2043432, 2270480, 2554290, 2724576, 3405720, 4086864, 4540960, 5108580, 5449152, 6811440, 8173728, 9081920, 10217160, 13622880, 16347456, 20434320, 27245760, 40868640, 81737280]

約数ペア:

[(1, 81737280), (2, 40868640), (3, 27245760), (4, 20434320), (5, 16347456), (6, 13622880), (8, 10217160), (9, 9081920), (10, 8173728), (12, 6811440), (15, 5449152), (16, 5108580), (18, 4540960), (20, 4086864), (24, 3405720), (30, 2724576), (32, 2554290), (36, 2270480), (40, 2043432), (45, 1816384), (48, 1702860), (60, 1362288), (64, 1277145), (72, 1135240), (80, 1021716), (90, 908192), (96, 851430), (101, 809280), (120, 681144), (144, 567620), (160, 510858), (180, 454096), (192, 425715), (202, 404640), (240, 340572), (281, 290880), (288, 283810), (303, 269760), (320, 255429), (360, 227048), (404, 202320), (480, 170286), (505, 161856), (562, 145440), (576, 141905), (606, 134880), (720, 113524), (808, 101160), (843, 96960), (909, 89920), (960, 85143), (1010, 80928), (1124, 72720), (1212, 67440), (1405, 58176), (1440, 56762), (1515, 53952), (1616, 50580), (1686, 48480), (1818, 44960), (2020, 40464), (2248, 36360), (2424, 33720), (2529, 32320), (2810, 29088), (2880, 28381), (3030, 26976), (3232, 25290), (3372, 24240), (3636, 22480), (4040, 20232), (4215, 19392), (4496, 18180), (4545, 17984), (4848, 16860), (5058, 16160), (5620, 14544), (6060, 13488), (6464, 12645), (6744, 12120), (7272, 11240), (8080, 10116), (8430, 9696), (8992, 9090)]