51497720

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{18133}}^1$

素因数の和:18215

約数の個数: 32

約数和(自身を含む): 117508320

約数和(自身を除く): 66010600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 18133, 36266, 72532, 90665, 145064, 181330, 362660, 725320, 1287443, 2574886, 5149772, 6437215, 10299544, 12874430, 25748860, 51497720]

約数ペア:

[(1, 51497720), (2, 25748860), (4, 12874430), (5, 10299544), (8, 6437215), (10, 5149772), (20, 2574886), (40, 1287443), (71, 725320), (142, 362660), (284, 181330), (355, 145064), (568, 90665), (710, 72532), (1420, 36266), (2840, 18133)]