31681920

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{569}}^1$

素因数の和:620

約数の個数: 128

約数和(自身を含む): 104652000

約数和(自身を除く): 72970080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 32, 40, 48, 58, 60, 64, 80, 87, 96, 116, 120, 128, 145, 160, 174, 192, 232, 240, 290, 320, 348, 384, 435, 464, 480, 569, 580, 640, 696, 870, 928, 960, 1138, 1160, 1392, 1707, 1740, 1856, 1920, 2276, 2320, 2784, 2845, 3414, 3480, 3712, 4552, 4640, 5568, 5690, 6828, 6960, 8535, 9104, 9280, 11136, 11380, 13656, 13920, 16501, 17070, 18208, 18560, 22760, 27312, 27840, 33002, 34140, 36416, 45520, 49503, 54624, 55680, 66004, 68280, 72832, 82505, 91040, 99006, 109248, 132008, 136560, 165010, 182080, 198012, 218496, 247515, 264016, 273120, 330020, 364160, 396024, 495030, 528032, 546240, 660040, 792048, 990060, 1056064, 1092480, 1320080, 1584096, 1980120, 2112128, 2640160, 3168192, 3960240, 5280320, 6336384, 7920480, 10560640, 15840960, 31681920]

約数ペア:

[(1, 31681920), (2, 15840960), (3, 10560640), (4, 7920480), (5, 6336384), (6, 5280320), (8, 3960240), (10, 3168192), (12, 2640160), (15, 2112128), (16, 1980120), (20, 1584096), (24, 1320080), (29, 1092480), (30, 1056064), (32, 990060), (40, 792048), (48, 660040), (58, 546240), (60, 528032), (64, 495030), (80, 396024), (87, 364160), (96, 330020), (116, 273120), (120, 264016), (128, 247515), (145, 218496), (160, 198012), (174, 182080), (192, 165010), (232, 136560), (240, 132008), (290, 109248), (320, 99006), (348, 91040), (384, 82505), (435, 72832), (464, 68280), (480, 66004), (569, 55680), (580, 54624), (640, 49503), (696, 45520), (870, 36416), (928, 34140), (960, 33002), (1138, 27840), (1160, 27312), (1392, 22760), (1707, 18560), (1740, 18208), (1856, 17070), (1920, 16501), (2276, 13920), (2320, 13656), (2784, 11380), (2845, 11136), (3414, 9280), (3480, 9104), (3712, 8535), (4552, 6960), (4640, 6828), (5568, 5690)]