20557568

素因数分解:

$2^8\times {\mathrm{131}}^1\times {\mathrm{613}}^1$

素因数の和:760

約数の個数: 36

約数和(自身を含む): 41415528

約数和(自身を除く): 20857960

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 131, 256, 262, 524, 613, 1048, 1226, 2096, 2452, 4192, 4904, 8384, 9808, 16768, 19616, 33536, 39232, 78464, 80303, 156928, 160606, 321212, 642424, 1284848, 2569696, 5139392, 10278784, 20557568]

約数ペア:

[(1, 20557568), (2, 10278784), (4, 5139392), (8, 2569696), (16, 1284848), (32, 642424), (64, 321212), (128, 160606), (131, 156928), (256, 80303), (262, 78464), (524, 39232), (613, 33536), (1048, 19616), (1226, 16768), (2096, 9808), (2452, 8384), (4192, 4904)]