19141920

素因数分解:

$2^5\times 3^4\times 5^1\times 7^1\times {\mathrm{211}}^1$

素因数の和:245

約数の個数: 240

約数和(自身を含む): 77571648

約数和(自身を除く): 58429728

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, 81, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 162, 168, 180, 189, 210, 211, 216, 224, 240, 252, 270, 280, 288, 315, 324, 336, 360, 378, 405, 420, 422, 432, 480, 504, 540, 560, 567, 630, 633, 648, 672, 720, 756, 810, 840, 844, 864, 945, 1008, 1055, 1080, 1120, 1134, 1260, 1266, 1296, 1440, 1477, 1512, 1620, 1680, 1688, 1890, 1899, 2016, 2110, 2160, 2268, 2520, 2532, 2592, 2835, 2954, 3024, 3165, 3240, 3360, 3376, 3780, 3798, 4220, 4320, 4431, 4536, 5040, 5064, 5670, 5697, 5908, 6048, 6330, 6480, 6752, 7385, 7560, 7596, 8440, 8862, 9072, 9495, 10080, 10128, 11340, 11394, 11816, 12660, 12960, 13293, 14770, 15120, 15192, 16880, 17091, 17724, 18144, 18990, 20256, 22155, 22680, 22788, 23632, 25320, 26586, 28485, 29540, 30240, 30384, 33760, 34182, 35448, 37980, 39879, 44310, 45360, 45576, 47264, 50640, 53172, 56970, 59080, 60768, 66465, 68364, 70896, 75960, 79758, 85455, 88620, 90720, 91152, 101280, 106344, 113940, 118160, 119637, 132930, 136728, 141792, 151920, 159516, 170910, 177240, 182304, 199395, 212688, 227880, 236320, 239274, 265860, 273456, 303840, 319032, 341820, 354480, 398790, 425376, 455760, 478548, 531720, 546912, 598185, 638064, 683640, 708960, 797580, 911520, 957096, 1063440, 1196370, 1276128, 1367280, 1595160, 1914192, 2126880, 2392740, 2734560, 3190320, 3828384, 4785480, 6380640, 9570960, 19141920]

約数ペア:

[(1, 19141920), (2, 9570960), (3, 6380640), (4, 4785480), (5, 3828384), (6, 3190320), (7, 2734560), (8, 2392740), (9, 2126880), (10, 1914192), (12, 1595160), (14, 1367280), (15, 1276128), (16, 1196370), (18, 1063440), (20, 957096), (21, 911520), (24, 797580), (27, 708960), (28, 683640), (30, 638064), (32, 598185), (35, 546912), (36, 531720), (40, 478548), (42, 455760), (45, 425376), (48, 398790), (54, 354480), (56, 341820), (60, 319032), (63, 303840), (70, 273456), (72, 265860), (80, 239274), (81, 236320), (84, 227880), (90, 212688), (96, 199395), (105, 182304), (108, 177240), (112, 170910), (120, 159516), (126, 151920), (135, 141792), (140, 136728), (144, 132930), (160, 119637), (162, 118160), (168, 113940), (180, 106344), (189, 101280), (210, 91152), (211, 90720), (216, 88620), (224, 85455), (240, 79758), (252, 75960), (270, 70896), (280, 68364), (288, 66465), (315, 60768), (324, 59080), (336, 56970), (360, 53172), (378, 50640), (405, 47264), (420, 45576), (422, 45360), (432, 44310), (480, 39879), (504, 37980), (540, 35448), (560, 34182), (567, 33760), (630, 30384), (633, 30240), (648, 29540), (672, 28485), (720, 26586), (756, 25320), (810, 23632), (840, 22788), (844, 22680), (864, 22155), (945, 20256), (1008, 18990), (1055, 18144), (1080, 17724), (1120, 17091), (1134, 16880), (1260, 15192), (1266, 15120), (1296, 14770), (1440, 13293), (1477, 12960), (1512, 12660), (1620, 11816), (1680, 11394), (1688, 11340), (1890, 10128), (1899, 10080), (2016, 9495), (2110, 9072), (2160, 8862), (2268, 8440), (2520, 7596), (2532, 7560), (2592, 7385), (2835, 6752), (2954, 6480), (3024, 6330), (3165, 6048), (3240, 5908), (3360, 5697), (3376, 5670), (3780, 5064), (3798, 5040), (4220, 4536), (4320, 4431)]