20796870416

素因数分解:

$2^4\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1417453}}^1$

素因数の和:1417599

約数の個数: 40

約数和(自身を含む): 46401774144

約数和(自身を除く): 25604903728

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 131, 262, 524, 917, 1048, 1834, 2096, 3668, 7336, 14672, 1417453, 2834906, 5669812, 9922171, 11339624, 19844342, 22679248, 39688684, 79377368, 158754736, 185686343, 371372686, 742745372, 1299804401, 1485490744, 2599608802, 2970981488, 5199217604, 10398435208, 20796870416]

約数ペア:

[(1, 20796870416), (2, 10398435208), (4, 5199217604), (7, 2970981488), (8, 2599608802), (14, 1485490744), (16, 1299804401), (28, 742745372), (56, 371372686), (112, 185686343), (131, 158754736), (262, 79377368), (524, 39688684), (917, 22679248), (1048, 19844342), (1834, 11339624), (2096, 9922171), (3668, 5669812), (7336, 2834906), (14672, 1417453)]