643447680

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2411}}^1$

素因数の和:2572

約数の個数: 128

約数和(自身を含む): 2066601600

約数和(自身を除く): 1423153920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 139, 160, 192, 240, 278, 320, 384, 417, 480, 556, 640, 695, 834, 960, 1112, 1390, 1668, 1920, 2085, 2224, 2411, 2780, 3336, 4170, 4448, 4822, 5560, 6672, 7233, 8340, 8896, 9644, 11120, 12055, 13344, 14466, 16680, 17792, 19288, 22240, 24110, 26688, 28932, 33360, 36165, 38576, 44480, 48220, 53376, 57864, 66720, 72330, 77152, 88960, 96440, 115728, 133440, 144660, 154304, 192880, 231456, 266880, 289320, 308608, 335129, 385760, 462912, 578640, 670258, 771520, 925824, 1005387, 1157280, 1340516, 1543040, 1675645, 2010774, 2314560, 2681032, 3351290, 4021548, 4629120, 5026935, 5362064, 6702580, 8043096, 10053870, 10724128, 13405160, 16086192, 20107740, 21448256, 26810320, 32172384, 40215480, 42896512, 53620640, 64344768, 80430960, 107241280, 128689536, 160861920, 214482560, 321723840, 643447680]

約数ペア:

[(1, 643447680), (2, 321723840), (3, 214482560), (4, 160861920), (5, 128689536), (6, 107241280), (8, 80430960), (10, 64344768), (12, 53620640), (15, 42896512), (16, 40215480), (20, 32172384), (24, 26810320), (30, 21448256), (32, 20107740), (40, 16086192), (48, 13405160), (60, 10724128), (64, 10053870), (80, 8043096), (96, 6702580), (120, 5362064), (128, 5026935), (139, 4629120), (160, 4021548), (192, 3351290), (240, 2681032), (278, 2314560), (320, 2010774), (384, 1675645), (417, 1543040), (480, 1340516), (556, 1157280), (640, 1005387), (695, 925824), (834, 771520), (960, 670258), (1112, 578640), (1390, 462912), (1668, 385760), (1920, 335129), (2085, 308608), (2224, 289320), (2411, 266880), (2780, 231456), (3336, 192880), (4170, 154304), (4448, 144660), (4822, 133440), (5560, 115728), (6672, 96440), (7233, 88960), (8340, 77152), (8896, 72330), (9644, 66720), (11120, 57864), (12055, 53376), (13344, 48220), (14466, 44480), (16680, 38576), (17792, 36165), (19288, 33360), (22240, 28932), (24110, 26688)]