21785760

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{41}}^2$

素因数の和:109

約数の個数: 180

約数和(自身を含む): 78806574

約数和(自身を除く): 57020814

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 41, 45, 48, 54, 60, 72, 80, 81, 82, 90, 96, 108, 120, 123, 135, 144, 160, 162, 164, 180, 205, 216, 240, 246, 270, 288, 324, 328, 360, 369, 405, 410, 432, 480, 492, 540, 615, 648, 656, 720, 738, 810, 820, 864, 984, 1080, 1107, 1230, 1296, 1312, 1440, 1476, 1620, 1640, 1681, 1845, 1968, 2160, 2214, 2460, 2592, 2952, 3240, 3280, 3321, 3362, 3690, 3936, 4320, 4428, 4920, 5043, 5535, 5904, 6480, 6560, 6642, 6724, 7380, 8405, 8856, 9840, 10086, 11070, 11808, 12960, 13284, 13448, 14760, 15129, 16605, 16810, 17712, 19680, 20172, 22140, 25215, 26568, 26896, 29520, 30258, 33210, 33620, 35424, 40344, 44280, 45387, 50430, 53136, 53792, 59040, 60516, 66420, 67240, 75645, 80688, 88560, 90774, 100860, 106272, 121032, 132840, 134480, 136161, 151290, 161376, 177120, 181548, 201720, 226935, 242064, 265680, 268960, 272322, 302580, 363096, 403440, 453870, 484128, 531360, 544644, 605160, 680805, 726192, 806880, 907740, 1089288, 1210320, 1361610, 1452384, 1815480, 2178576, 2420640, 2723220, 3630960, 4357152, 5446440, 7261920, 10892880, 21785760]

約数ペア:

[(1, 21785760), (2, 10892880), (3, 7261920), (4, 5446440), (5, 4357152), (6, 3630960), (8, 2723220), (9, 2420640), (10, 2178576), (12, 1815480), (15, 1452384), (16, 1361610), (18, 1210320), (20, 1089288), (24, 907740), (27, 806880), (30, 726192), (32, 680805), (36, 605160), (40, 544644), (41, 531360), (45, 484128), (48, 453870), (54, 403440), (60, 363096), (72, 302580), (80, 272322), (81, 268960), (82, 265680), (90, 242064), (96, 226935), (108, 201720), (120, 181548), (123, 177120), (135, 161376), (144, 151290), (160, 136161), (162, 134480), (164, 132840), (180, 121032), (205, 106272), (216, 100860), (240, 90774), (246, 88560), (270, 80688), (288, 75645), (324, 67240), (328, 66420), (360, 60516), (369, 59040), (405, 53792), (410, 53136), (432, 50430), (480, 45387), (492, 44280), (540, 40344), (615, 35424), (648, 33620), (656, 33210), (720, 30258), (738, 29520), (810, 26896), (820, 26568), (864, 25215), (984, 22140), (1080, 20172), (1107, 19680), (1230, 17712), (1296, 16810), (1312, 16605), (1440, 15129), (1476, 14760), (1620, 13448), (1640, 13284), (1681, 12960), (1845, 11808), (1968, 11070), (2160, 10086), (2214, 9840), (2460, 8856), (2592, 8405), (2952, 7380), (3240, 6724), (3280, 6642), (3321, 6560), (3362, 6480), (3690, 5904), (3936, 5535), (4320, 5043), (4428, 4920)]