80539920

素因数分解:

$2^4\times 3^6\times 5^1\times {\mathrm{1381}}^1$

素因数の和:1412

約数の個数: 140

約数和(自身を含む): 280957836

約数和(自身を除く): 200417916

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 243, 270, 324, 360, 405, 432, 486, 540, 648, 720, 729, 810, 972, 1080, 1215, 1296, 1381, 1458, 1620, 1944, 2160, 2430, 2762, 2916, 3240, 3645, 3888, 4143, 4860, 5524, 5832, 6480, 6905, 7290, 8286, 9720, 11048, 11664, 12429, 13810, 14580, 16572, 19440, 20715, 22096, 24858, 27620, 29160, 33144, 37287, 41430, 49716, 55240, 58320, 62145, 66288, 74574, 82860, 99432, 110480, 111861, 124290, 149148, 165720, 186435, 198864, 223722, 248580, 298296, 331440, 335583, 372870, 447444, 497160, 559305, 596592, 671166, 745740, 894888, 994320, 1006749, 1118610, 1342332, 1491480, 1677915, 1789776, 2013498, 2237220, 2684664, 2982960, 3355830, 4026996, 4474440, 5033745, 5369328, 6711660, 8053992, 8948880, 10067490, 13423320, 16107984, 20134980, 26846640, 40269960, 80539920]

約数ペア:

[(1, 80539920), (2, 40269960), (3, 26846640), (4, 20134980), (5, 16107984), (6, 13423320), (8, 10067490), (9, 8948880), (10, 8053992), (12, 6711660), (15, 5369328), (16, 5033745), (18, 4474440), (20, 4026996), (24, 3355830), (27, 2982960), (30, 2684664), (36, 2237220), (40, 2013498), (45, 1789776), (48, 1677915), (54, 1491480), (60, 1342332), (72, 1118610), (80, 1006749), (81, 994320), (90, 894888), (108, 745740), (120, 671166), (135, 596592), (144, 559305), (162, 497160), (180, 447444), (216, 372870), (240, 335583), (243, 331440), (270, 298296), (324, 248580), (360, 223722), (405, 198864), (432, 186435), (486, 165720), (540, 149148), (648, 124290), (720, 111861), (729, 110480), (810, 99432), (972, 82860), (1080, 74574), (1215, 66288), (1296, 62145), (1381, 58320), (1458, 55240), (1620, 49716), (1944, 41430), (2160, 37287), (2430, 33144), (2762, 29160), (2916, 27620), (3240, 24858), (3645, 22096), (3888, 20715), (4143, 19440), (4860, 16572), (5524, 14580), (5832, 13810), (6480, 12429), (6905, 11664), (7290, 11048), (8286, 9720)]