205230720

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{769}}^1$

素因数の和:930

約数の個数: 128

約数和(自身を含む): 659736000

約数和(自身を除く): 454505280

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, 769, 834, 960, 1112, 1390, 1538, 1668, 1920, 2085, 2224, 2307, 2780, 3076, 3336, 3845, 4170, 4448, 4614, 5560, 6152, 6672, 7690, 8340, 8896, 9228, 11120, 11535, 12304, 13344, 15380, 16680, 17792, 18456, 22240, 23070, 24608, 26688, 30760, 33360, 36912, 44480, 46140, 49216, 53376, 61520, 66720, 73824, 88960, 92280, 98432, 106891, 123040, 133440, 147648, 184560, 213782, 246080, 266880, 295296, 320673, 369120, 427564, 492160, 534455, 641346, 738240, 855128, 1068910, 1282692, 1476480, 1603365, 1710256, 2137820, 2565384, 3206730, 3420512, 4275640, 5130768, 6413460, 6841024, 8551280, 10261536, 12826920, 13682048, 17102560, 20523072, 25653840, 34205120, 41046144, 51307680, 68410240, 102615360, 205230720]

約数ペア:

[(1, 205230720), (2, 102615360), (3, 68410240), (4, 51307680), (5, 41046144), (6, 34205120), (8, 25653840), (10, 20523072), (12, 17102560), (15, 13682048), (16, 12826920), (20, 10261536), (24, 8551280), (30, 6841024), (32, 6413460), (40, 5130768), (48, 4275640), (60, 3420512), (64, 3206730), (80, 2565384), (96, 2137820), (120, 1710256), (128, 1603365), (139, 1476480), (160, 1282692), (192, 1068910), (240, 855128), (278, 738240), (320, 641346), (384, 534455), (417, 492160), (480, 427564), (556, 369120), (640, 320673), (695, 295296), (769, 266880), (834, 246080), (960, 213782), (1112, 184560), (1390, 147648), (1538, 133440), (1668, 123040), (1920, 106891), (2085, 98432), (2224, 92280), (2307, 88960), (2780, 73824), (3076, 66720), (3336, 61520), (3845, 53376), (4170, 49216), (4448, 46140), (4614, 44480), (5560, 36912), (6152, 33360), (6672, 30760), (7690, 26688), (8340, 24608), (8896, 23070), (9228, 22240), (11120, 18456), (11535, 17792), (12304, 16680), (13344, 15380)]