18819840

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1$

素因数の和:79

約数の個数: 216

約数和(自身を含む): 67329360

約数和(自身を除く): 48509520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 29, 30, 32, 39, 40, 48, 52, 58, 60, 64, 65, 78, 80, 87, 96, 104, 116, 120, 128, 130, 145, 156, 160, 169, 174, 192, 195, 208, 232, 240, 256, 260, 290, 312, 320, 338, 348, 377, 384, 390, 416, 435, 464, 480, 507, 520, 580, 624, 640, 676, 696, 754, 768, 780, 832, 845, 870, 928, 960, 1014, 1040, 1131, 1160, 1248, 1280, 1352, 1392, 1508, 1560, 1664, 1690, 1740, 1856, 1885, 1920, 2028, 2080, 2262, 2320, 2496, 2535, 2704, 2784, 3016, 3120, 3328, 3380, 3480, 3712, 3770, 3840, 4056, 4160, 4524, 4640, 4901, 4992, 5070, 5408, 5568, 5655, 6032, 6240, 6760, 6960, 7424, 7540, 8112, 8320, 9048, 9280, 9802, 9984, 10140, 10816, 11136, 11310, 12064, 12480, 13520, 13920, 14703, 15080, 16224, 16640, 18096, 18560, 19604, 20280, 21632, 22272, 22620, 24128, 24505, 24960, 27040, 27840, 29406, 30160, 32448, 36192, 37120, 39208, 40560, 43264, 45240, 48256, 49010, 49920, 54080, 55680, 58812, 60320, 64896, 72384, 73515, 78416, 81120, 90480, 96512, 98020, 108160, 111360, 117624, 120640, 129792, 144768, 147030, 156832, 162240, 180960, 196040, 216320, 235248, 241280, 289536, 294060, 313664, 324480, 361920, 392080, 470496, 482560, 588120, 627328, 648960, 723840, 784160, 940992, 1176240, 1254656, 1447680, 1568320, 1881984, 2352480, 3136640, 3763968, 4704960, 6273280, 9409920, 18819840]

約数ペア:

[(1, 18819840), (2, 9409920), (3, 6273280), (4, 4704960), (5, 3763968), (6, 3136640), (8, 2352480), (10, 1881984), (12, 1568320), (13, 1447680), (15, 1254656), (16, 1176240), (20, 940992), (24, 784160), (26, 723840), (29, 648960), (30, 627328), (32, 588120), (39, 482560), (40, 470496), (48, 392080), (52, 361920), (58, 324480), (60, 313664), (64, 294060), (65, 289536), (78, 241280), (80, 235248), (87, 216320), (96, 196040), (104, 180960), (116, 162240), (120, 156832), (128, 147030), (130, 144768), (145, 129792), (156, 120640), (160, 117624), (169, 111360), (174, 108160), (192, 98020), (195, 96512), (208, 90480), (232, 81120), (240, 78416), (256, 73515), (260, 72384), (290, 64896), (312, 60320), (320, 58812), (338, 55680), (348, 54080), (377, 49920), (384, 49010), (390, 48256), (416, 45240), (435, 43264), (464, 40560), (480, 39208), (507, 37120), (520, 36192), (580, 32448), (624, 30160), (640, 29406), (676, 27840), (696, 27040), (754, 24960), (768, 24505), (780, 24128), (832, 22620), (845, 22272), (870, 21632), (928, 20280), (960, 19604), (1014, 18560), (1040, 18096), (1131, 16640), (1160, 16224), (1248, 15080), (1280, 14703), (1352, 13920), (1392, 13520), (1508, 12480), (1560, 12064), (1664, 11310), (1690, 11136), (1740, 10816), (1856, 10140), (1885, 9984), (1920, 9802), (2028, 9280), (2080, 9048), (2262, 8320), (2320, 8112), (2496, 7540), (2535, 7424), (2704, 6960), (2784, 6760), (3016, 6240), (3120, 6032), (3328, 5655), (3380, 5568), (3480, 5408), (3712, 5070), (3770, 4992), (3840, 4901), (4056, 4640), (4160, 4524)]