1721280960

素因数分解:

$2^6\times 3^2\times 5^1\times 7^1\times {\mathrm{85381}}^1$

素因数の和:85411

約数の個数: 168

約数和(自身を含む): 6766352736

約数和(自身を除く): 5045071776

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, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 420, 448, 480, 504, 560, 576, 630, 672, 720, 840, 960, 1008, 1120, 1260, 1344, 1440, 1680, 2016, 2240, 2520, 2880, 3360, 4032, 5040, 6720, 10080, 20160, 85381, 170762, 256143, 341524, 426905, 512286, 597667, 683048, 768429, 853810, 1024572, 1195334, 1280715, 1366096, 1536858, 1707620, 1793001, 2049144, 2390668, 2561430, 2732192, 2988335, 3073716, 3415240, 3586002, 3842145, 4098288, 4781336, 5122860, 5379003, 5464384, 5976670, 6147432, 6830480, 7172004, 7684290, 8196576, 8965005, 9562672, 10245720, 10758006, 11953340, 12294864, 13660960, 14344008, 15368580, 16393152, 17930010, 19125344, 20491440, 21516012, 23906680, 24589728, 26895015, 27321920, 28688016, 30737160, 35860020, 38250688, 40982880, 43032024, 47813360, 49179456, 53790030, 57376032, 61474320, 71720040, 81965760, 86064048, 95626720, 107580060, 114752064, 122948640, 143440080, 172128096, 191253440, 215160120, 245897280, 286880160, 344256192, 430320240, 573760320, 860640480, 1721280960]

約数ペア:

[(1, 1721280960), (2, 860640480), (3, 573760320), (4, 430320240), (5, 344256192), (6, 286880160), (7, 245897280), (8, 215160120), (9, 191253440), (10, 172128096), (12, 143440080), (14, 122948640), (15, 114752064), (16, 107580060), (18, 95626720), (20, 86064048), (21, 81965760), (24, 71720040), (28, 61474320), (30, 57376032), (32, 53790030), (35, 49179456), (36, 47813360), (40, 43032024), (42, 40982880), (45, 38250688), (48, 35860020), (56, 30737160), (60, 28688016), (63, 27321920), (64, 26895015), (70, 24589728), (72, 23906680), (80, 21516012), (84, 20491440), (90, 19125344), (96, 17930010), (105, 16393152), (112, 15368580), (120, 14344008), (126, 13660960), (140, 12294864), (144, 11953340), (160, 10758006), (168, 10245720), (180, 9562672), (192, 8965005), (210, 8196576), (224, 7684290), (240, 7172004), (252, 6830480), (280, 6147432), (288, 5976670), (315, 5464384), (320, 5379003), (336, 5122860), (360, 4781336), (420, 4098288), (448, 3842145), (480, 3586002), (504, 3415240), (560, 3073716), (576, 2988335), (630, 2732192), (672, 2561430), (720, 2390668), (840, 2049144), (960, 1793001), (1008, 1707620), (1120, 1536858), (1260, 1366096), (1344, 1280715), (1440, 1195334), (1680, 1024572), (2016, 853810), (2240, 768429), (2520, 683048), (2880, 597667), (3360, 512286), (4032, 426905), (5040, 341524), (6720, 256143), (10080, 170762), (20160, 85381)]