20416868640

素因数分解:

$2^5\times 3^3\times 5^1\times 7^1\times {\mathrm{675161}}^1$

素因数の和:675192

約数の個数: 192

約数和(自身を含む): 81667595520

約数和(自身を除く): 61250726880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 168, 180, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 336, 360, 378, 420, 432, 480, 504, 540, 560, 630, 672, 720, 756, 840, 864, 945, 1008, 1080, 1120, 1260, 1440, 1512, 1680, 1890, 2016, 2160, 2520, 3024, 3360, 3780, 4320, 5040, 6048, 7560, 10080, 15120, 30240, 675161, 1350322, 2025483, 2700644, 3375805, 4050966, 4726127, 5401288, 6076449, 6751610, 8101932, 9452254, 10127415, 10802576, 12152898, 13503220, 14178381, 16203864, 18229347, 18904508, 20254830, 21605152, 23630635, 24305796, 27006440, 28356762, 30382245, 32407728, 36458694, 37809016, 40509660, 42535143, 47261270, 48611592, 54012880, 56713524, 60764490, 64815456, 70891905, 72917388, 75618032, 81019320, 85070286, 91146735, 94522540, 97223184, 108025760, 113427048, 121528980, 127605429, 141783810, 145834776, 151236064, 162038640, 170140572, 182293470, 189045080, 194446368, 212675715, 226854096, 243057960, 255210858, 283567620, 291669552, 324077280, 340281144, 364586940, 378090160, 425351430, 453708192, 486115920, 510421716, 567135240, 583339104, 638027145, 680562288, 729173880, 756180320, 850702860, 972231840, 1020843432, 1134270480, 1276054290, 1361124576, 1458347760, 1701405720, 2041686864, 2268540960, 2552108580, 2916695520, 3402811440, 4083373728, 5104217160, 6805622880, 10208434320, 20416868640]

約数ペア:

[(1, 20416868640), (2, 10208434320), (3, 6805622880), (4, 5104217160), (5, 4083373728), (6, 3402811440), (7, 2916695520), (8, 2552108580), (9, 2268540960), (10, 2041686864), (12, 1701405720), (14, 1458347760), (15, 1361124576), (16, 1276054290), (18, 1134270480), (20, 1020843432), (21, 972231840), (24, 850702860), (27, 756180320), (28, 729173880), (30, 680562288), (32, 638027145), (35, 583339104), (36, 567135240), (40, 510421716), (42, 486115920), (45, 453708192), (48, 425351430), (54, 378090160), (56, 364586940), (60, 340281144), (63, 324077280), (70, 291669552), (72, 283567620), (80, 255210858), (84, 243057960), (90, 226854096), (96, 212675715), (105, 194446368), (108, 189045080), (112, 182293470), (120, 170140572), (126, 162038640), (135, 151236064), (140, 145834776), (144, 141783810), (160, 127605429), (168, 121528980), (180, 113427048), (189, 108025760), (210, 97223184), (216, 94522540), (224, 91146735), (240, 85070286), (252, 81019320), (270, 75618032), (280, 72917388), (288, 70891905), (315, 64815456), (336, 60764490), (360, 56713524), (378, 54012880), (420, 48611592), (432, 47261270), (480, 42535143), (504, 40509660), (540, 37809016), (560, 36458694), (630, 32407728), (672, 30382245), (720, 28356762), (756, 27006440), (840, 24305796), (864, 23630635), (945, 21605152), (1008, 20254830), (1080, 18904508), (1120, 18229347), (1260, 16203864), (1440, 14178381), (1512, 13503220), (1680, 12152898), (1890, 10802576), (2016, 10127415), (2160, 9452254), (2520, 8101932), (3024, 6751610), (3360, 6076449), (3780, 5401288), (4320, 4726127), (5040, 4050966), (6048, 3375805), (7560, 2700644), (10080, 2025483), (15120, 1350322), (30240, 675161)]