20675520

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{2393}}^1$

素因数の和:2419

約数の個数: 112

約数和(自身を含む): 72969120

約数和(自身を除く): 52293600

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, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 432, 480, 540, 576, 720, 864, 960, 1080, 1440, 1728, 2160, 2393, 2880, 4320, 4786, 7179, 8640, 9572, 11965, 14358, 19144, 21537, 23930, 28716, 35895, 38288, 43074, 47860, 57432, 64611, 71790, 76576, 86148, 95720, 107685, 114864, 129222, 143580, 153152, 172296, 191440, 215370, 229728, 258444, 287160, 323055, 344592, 382880, 430740, 459456, 516888, 574320, 646110, 689184, 765760, 861480, 1033776, 1148640, 1292220, 1378368, 1722960, 2067552, 2297280, 2584440, 3445920, 4135104, 5168880, 6891840, 10337760, 20675520]

約数ペア:

[(1, 20675520), (2, 10337760), (3, 6891840), (4, 5168880), (5, 4135104), (6, 3445920), (8, 2584440), (9, 2297280), (10, 2067552), (12, 1722960), (15, 1378368), (16, 1292220), (18, 1148640), (20, 1033776), (24, 861480), (27, 765760), (30, 689184), (32, 646110), (36, 574320), (40, 516888), (45, 459456), (48, 430740), (54, 382880), (60, 344592), (64, 323055), (72, 287160), (80, 258444), (90, 229728), (96, 215370), (108, 191440), (120, 172296), (135, 153152), (144, 143580), (160, 129222), (180, 114864), (192, 107685), (216, 95720), (240, 86148), (270, 76576), (288, 71790), (320, 64611), (360, 57432), (432, 47860), (480, 43074), (540, 38288), (576, 35895), (720, 28716), (864, 23930), (960, 21537), (1080, 19144), (1440, 14358), (1728, 11965), (2160, 9572), (2393, 8640), (2880, 7179), (4320, 4786)]