18789120

素因数分解:

$2^8\times 3^2\times 5^1\times 7^1\times {\mathrm{233}}^1$

素因数の和:267

約数の個数: 216

約数和(自身を含む): 74614176

約数和(自身を除く): 55825056

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 233, 240, 252, 256, 280, 288, 315, 320, 336, 360, 384, 420, 448, 466, 480, 504, 560, 576, 630, 640, 672, 699, 720, 768, 840, 896, 932, 960, 1008, 1120, 1152, 1165, 1260, 1280, 1344, 1398, 1440, 1631, 1680, 1792, 1864, 1920, 2016, 2097, 2240, 2304, 2330, 2520, 2688, 2796, 2880, 3262, 3360, 3495, 3728, 3840, 4032, 4194, 4480, 4660, 4893, 5040, 5376, 5592, 5760, 6524, 6720, 6990, 7456, 8064, 8155, 8388, 8960, 9320, 9786, 10080, 10485, 11184, 11520, 13048, 13440, 13980, 14679, 14912, 16128, 16310, 16776, 18640, 19572, 20160, 20970, 22368, 24465, 26096, 26880, 27960, 29358, 29824, 32620, 33552, 37280, 39144, 40320, 41940, 44736, 48930, 52192, 55920, 58716, 59648, 65240, 67104, 73395, 74560, 78288, 80640, 83880, 89472, 97860, 104384, 111840, 117432, 130480, 134208, 146790, 149120, 156576, 167760, 178944, 195720, 208768, 223680, 234864, 260960, 268416, 293580, 298240, 313152, 335520, 391440, 417536, 447360, 469728, 521920, 536832, 587160, 626304, 671040, 782880, 894720, 939456, 1043840, 1174320, 1252608, 1342080, 1565760, 1878912, 2087680, 2348640, 2684160, 3131520, 3757824, 4697280, 6263040, 9394560, 18789120]

約数ペア:

[(1, 18789120), (2, 9394560), (3, 6263040), (4, 4697280), (5, 3757824), (6, 3131520), (7, 2684160), (8, 2348640), (9, 2087680), (10, 1878912), (12, 1565760), (14, 1342080), (15, 1252608), (16, 1174320), (18, 1043840), (20, 939456), (21, 894720), (24, 782880), (28, 671040), (30, 626304), (32, 587160), (35, 536832), (36, 521920), (40, 469728), (42, 447360), (45, 417536), (48, 391440), (56, 335520), (60, 313152), (63, 298240), (64, 293580), (70, 268416), (72, 260960), (80, 234864), (84, 223680), (90, 208768), (96, 195720), (105, 178944), (112, 167760), (120, 156576), (126, 149120), (128, 146790), (140, 134208), (144, 130480), (160, 117432), (168, 111840), (180, 104384), (192, 97860), (210, 89472), (224, 83880), (233, 80640), (240, 78288), (252, 74560), (256, 73395), (280, 67104), (288, 65240), (315, 59648), (320, 58716), (336, 55920), (360, 52192), (384, 48930), (420, 44736), (448, 41940), (466, 40320), (480, 39144), (504, 37280), (560, 33552), (576, 32620), (630, 29824), (640, 29358), (672, 27960), (699, 26880), (720, 26096), (768, 24465), (840, 22368), (896, 20970), (932, 20160), (960, 19572), (1008, 18640), (1120, 16776), (1152, 16310), (1165, 16128), (1260, 14912), (1280, 14679), (1344, 13980), (1398, 13440), (1440, 13048), (1631, 11520), (1680, 11184), (1792, 10485), (1864, 10080), (1920, 9786), (2016, 9320), (2097, 8960), (2240, 8388), (2304, 8155), (2330, 8064), (2520, 7456), (2688, 6990), (2796, 6720), (2880, 6524), (3262, 5760), (3360, 5592), (3495, 5376), (3728, 5040), (3840, 4893), (4032, 4660), (4194, 4480)]