278984805

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{12907}}^1$

素因数の和:13057

約数の個数: 32

約数和(自身を含む): 490710528

約数和(自身を除く): 211725723

約数列:

[1, 3, 5, 11, 15, 33, 55, 131, 165, 393, 655, 1441, 1965, 4323, 7205, 12907, 21615, 38721, 64535, 141977, 193605, 425931, 709885, 1690817, 2129655, 5072451, 8454085, 18598987, 25362255, 55796961, 92994935, 278984805]

約数ペア:

[(1, 278984805), (3, 92994935), (5, 55796961), (11, 25362255), (15, 18598987), (33, 8454085), (55, 5072451), (131, 2129655), (165, 1690817), (393, 709885), (655, 425931), (1441, 193605), (1965, 141977), (4323, 64535), (7205, 38721), (12907, 21615)]