20688480

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{4789}}^1$

素因数の和:4813

約数の個数: 96

約数和(自身を含む): 72424800

約数和(自身を除く): 51736320

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, 216, 240, 270, 288, 360, 432, 480, 540, 720, 864, 1080, 1440, 2160, 4320, 4789, 9578, 14367, 19156, 23945, 28734, 38312, 43101, 47890, 57468, 71835, 76624, 86202, 95780, 114936, 129303, 143670, 153248, 172404, 191560, 215505, 229872, 258606, 287340, 344808, 383120, 431010, 459744, 517212, 574680, 646515, 689616, 766240, 862020, 1034424, 1149360, 1293030, 1379232, 1724040, 2068848, 2298720, 2586060, 3448080, 4137696, 5172120, 6896160, 10344240, 20688480]

約数ペア:

[(1, 20688480), (2, 10344240), (3, 6896160), (4, 5172120), (5, 4137696), (6, 3448080), (8, 2586060), (9, 2298720), (10, 2068848), (12, 1724040), (15, 1379232), (16, 1293030), (18, 1149360), (20, 1034424), (24, 862020), (27, 766240), (30, 689616), (32, 646515), (36, 574680), (40, 517212), (45, 459744), (48, 431010), (54, 383120), (60, 344808), (72, 287340), (80, 258606), (90, 229872), (96, 215505), (108, 191560), (120, 172404), (135, 153248), (144, 143670), (160, 129303), (180, 114936), (216, 95780), (240, 86202), (270, 76624), (288, 71835), (360, 57468), (432, 47890), (480, 43101), (540, 38312), (720, 28734), (864, 23945), (1080, 19156), (1440, 14367), (2160, 9578), (4320, 4789)]