278714992

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{2957}}^1$

素因数の和:3145

約数の個数: 40

約数和(自身を含む): 556790256

約数和(自身を除く): 278075264

約数列:

[1, 2, 4, 8, 16, 43, 86, 137, 172, 274, 344, 548, 688, 1096, 2192, 2957, 5891, 5914, 11782, 11828, 23564, 23656, 47128, 47312, 94256, 127151, 254302, 405109, 508604, 810218, 1017208, 1620436, 2034416, 3240872, 6481744, 17419687, 34839374, 69678748, 139357496, 278714992]

約数ペア:

[(1, 278714992), (2, 139357496), (4, 69678748), (8, 34839374), (16, 17419687), (43, 6481744), (86, 3240872), (137, 2034416), (172, 1620436), (274, 1017208), (344, 810218), (548, 508604), (688, 405109), (1096, 254302), (2192, 127151), (2957, 94256), (5891, 47312), (5914, 47128), (11782, 23656), (11828, 23564)]