51369520

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1$

素因数の和:302

約数の個数: 80

約数和(自身を含む): 124233120

約数和(自身を除く): 72863600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 109, 137, 172, 215, 218, 274, 344, 430, 436, 545, 548, 685, 688, 860, 872, 1090, 1096, 1370, 1720, 1744, 2180, 2192, 2740, 3440, 4360, 4687, 5480, 5891, 8720, 9374, 10960, 11782, 14933, 18748, 23435, 23564, 29455, 29866, 37496, 46870, 47128, 58910, 59732, 74665, 74992, 93740, 94256, 117820, 119464, 149330, 187480, 235640, 238928, 298660, 374960, 471280, 597320, 642119, 1194640, 1284238, 2568476, 3210595, 5136952, 6421190, 10273904, 12842380, 25684760, 51369520]

約数ペア:

[(1, 51369520), (2, 25684760), (4, 12842380), (5, 10273904), (8, 6421190), (10, 5136952), (16, 3210595), (20, 2568476), (40, 1284238), (43, 1194640), (80, 642119), (86, 597320), (109, 471280), (137, 374960), (172, 298660), (215, 238928), (218, 235640), (274, 187480), (344, 149330), (430, 119464), (436, 117820), (545, 94256), (548, 93740), (685, 74992), (688, 74665), (860, 59732), (872, 58910), (1090, 47128), (1096, 46870), (1370, 37496), (1720, 29866), (1744, 29455), (2180, 23564), (2192, 23435), (2740, 18748), (3440, 14933), (4360, 11782), (4687, 10960), (5480, 9374), (5891, 8720)]