20485837440

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{1185523}}^1$

素因数の和:1185551

約数の個数: 128

約数和(自身を含む): 72554068800

約数和(自身を除く): 52068231360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 384, 432, 480, 540, 576, 640, 720, 864, 960, 1080, 1152, 1440, 1728, 1920, 2160, 2880, 3456, 4320, 5760, 8640, 17280, 1185523, 2371046, 3556569, 4742092, 5927615, 7113138, 9484184, 10669707, 11855230, 14226276, 17782845, 18968368, 21339414, 23710460, 28452552, 32009121, 35565690, 37936736, 42678828, 47420920, 53348535, 56905104, 64018242, 71131380, 75873472, 85357656, 94841840, 106697070, 113810208, 128036484, 142262760, 151746944, 160045605, 170715312, 189683680, 213394140, 227620416, 256072968, 284525520, 320091210, 341430624, 379367360, 426788280, 455240832, 512145936, 569051040, 640182420, 682861248, 758734720, 853576560, 1024291872, 1138102080, 1280364840, 1365722496, 1707153120, 2048583744, 2276204160, 2560729680, 3414306240, 4097167488, 5121459360, 6828612480, 10242918720, 20485837440]

約数ペア:

[(1, 20485837440), (2, 10242918720), (3, 6828612480), (4, 5121459360), (5, 4097167488), (6, 3414306240), (8, 2560729680), (9, 2276204160), (10, 2048583744), (12, 1707153120), (15, 1365722496), (16, 1280364840), (18, 1138102080), (20, 1024291872), (24, 853576560), (27, 758734720), (30, 682861248), (32, 640182420), (36, 569051040), (40, 512145936), (45, 455240832), (48, 426788280), (54, 379367360), (60, 341430624), (64, 320091210), (72, 284525520), (80, 256072968), (90, 227620416), (96, 213394140), (108, 189683680), (120, 170715312), (128, 160045605), (135, 151746944), (144, 142262760), (160, 128036484), (180, 113810208), (192, 106697070), (216, 94841840), (240, 85357656), (270, 75873472), (288, 71131380), (320, 64018242), (360, 56905104), (384, 53348535), (432, 47420920), (480, 42678828), (540, 37936736), (576, 35565690), (640, 32009121), (720, 28452552), (864, 23710460), (960, 21339414), (1080, 18968368), (1152, 17782845), (1440, 14226276), (1728, 11855230), (1920, 10669707), (2160, 9484184), (2880, 7113138), (3456, 5927615), (4320, 4742092), (5760, 3556569), (8640, 2371046), (17280, 1185523)]