89251988

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 182622720

約数和(自身を除く): 93370732

約数列:

[1, 2, 4, 7, 14, 28, 79, 157, 158, 257, 314, 316, 514, 553, 628, 1028, 1099, 1106, 1799, 2198, 2212, 3598, 4396, 7196, 12403, 20303, 24806, 40349, 40606, 49612, 80698, 81212, 86821, 142121, 161396, 173642, 282443, 284242, 347284, 564886, 568484, 1129772, 3187571, 6375142, 12750284, 22312997, 44625994, 89251988]

約数ペア:

[(1, 89251988), (2, 44625994), (4, 22312997), (7, 12750284), (14, 6375142), (28, 3187571), (79, 1129772), (157, 568484), (158, 564886), (257, 347284), (314, 284242), (316, 282443), (514, 173642), (553, 161396), (628, 142121), (1028, 86821), (1099, 81212), (1106, 80698), (1799, 49612), (2198, 40606), (2212, 40349), (3598, 24806), (4396, 20303), (7196, 12403)]