280709280

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{359}}^1$

素因数の和:564

約数の個数: 192

約数和(自身を含む): 990662400

約数和(自身を除く): 709953120

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, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 181, 216, 240, 270, 288, 359, 360, 362, 432, 480, 540, 543, 718, 720, 724, 864, 905, 1077, 1080, 1086, 1436, 1440, 1448, 1629, 1795, 1810, 2154, 2160, 2172, 2715, 2872, 2896, 3231, 3258, 3590, 3620, 4308, 4320, 4344, 4887, 5385, 5430, 5744, 5792, 6462, 6516, 7180, 7240, 8145, 8616, 8688, 9693, 9774, 10770, 10860, 11488, 12924, 13032, 14360, 14480, 16155, 16290, 17232, 17376, 19386, 19548, 21540, 21720, 24435, 25848, 26064, 28720, 28960, 32310, 32580, 34464, 38772, 39096, 43080, 43440, 48465, 48870, 51696, 52128, 57440, 64620, 64979, 65160, 77544, 78192, 86160, 86880, 96930, 97740, 103392, 129240, 129958, 130320, 155088, 156384, 172320, 193860, 194937, 195480, 258480, 259916, 260640, 310176, 324895, 387720, 389874, 390960, 516960, 519832, 584811, 649790, 775440, 779748, 781920, 974685, 1039664, 1169622, 1299580, 1550880, 1559496, 1754433, 1949370, 2079328, 2339244, 2599160, 2924055, 3118992, 3508866, 3898740, 4678488, 5198320, 5848110, 6237984, 7017732, 7797480, 8772165, 9356976, 10396640, 11696220, 14035464, 15594960, 17544330, 18713952, 23392440, 28070928, 31189920, 35088660, 46784880, 56141856, 70177320, 93569760, 140354640, 280709280]

約数ペア:

[(1, 280709280), (2, 140354640), (3, 93569760), (4, 70177320), (5, 56141856), (6, 46784880), (8, 35088660), (9, 31189920), (10, 28070928), (12, 23392440), (15, 18713952), (16, 17544330), (18, 15594960), (20, 14035464), (24, 11696220), (27, 10396640), (30, 9356976), (32, 8772165), (36, 7797480), (40, 7017732), (45, 6237984), (48, 5848110), (54, 5198320), (60, 4678488), (72, 3898740), (80, 3508866), (90, 3118992), (96, 2924055), (108, 2599160), (120, 2339244), (135, 2079328), (144, 1949370), (160, 1754433), (180, 1559496), (181, 1550880), (216, 1299580), (240, 1169622), (270, 1039664), (288, 974685), (359, 781920), (360, 779748), (362, 775440), (432, 649790), (480, 584811), (540, 519832), (543, 516960), (718, 390960), (720, 389874), (724, 387720), (864, 324895), (905, 310176), (1077, 260640), (1080, 259916), (1086, 258480), (1436, 195480), (1440, 194937), (1448, 193860), (1629, 172320), (1795, 156384), (1810, 155088), (2154, 130320), (2160, 129958), (2172, 129240), (2715, 103392), (2872, 97740), (2896, 96930), (3231, 86880), (3258, 86160), (3590, 78192), (3620, 77544), (4308, 65160), (4320, 64979), (4344, 64620), (4887, 57440), (5385, 52128), (5430, 51696), (5744, 48870), (5792, 48465), (6462, 43440), (6516, 43080), (7180, 39096), (7240, 38772), (8145, 34464), (8616, 32580), (8688, 32310), (9693, 28960), (9774, 28720), (10770, 26064), (10860, 25848), (11488, 24435), (12924, 21720), (13032, 21540), (14360, 19548), (14480, 19386), (16155, 17376), (16290, 17232)]