205884

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:79

約数の個数: 72

約数和(自身を含む): 640640

約数和(自身を除く): 434756

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 28, 36, 38, 42, 43, 57, 63, 76, 84, 86, 114, 126, 129, 133, 171, 172, 228, 252, 258, 266, 301, 342, 387, 399, 516, 532, 602, 684, 774, 798, 817, 903, 1197, 1204, 1548, 1596, 1634, 1806, 2394, 2451, 2709, 3268, 3612, 4788, 4902, 5418, 5719, 7353, 9804, 10836, 11438, 14706, 17157, 22876, 29412, 34314, 51471, 68628, 102942, 205884]

約数ペア:

[(1, 205884), (2, 102942), (3, 68628), (4, 51471), (6, 34314), (7, 29412), (9, 22876), (12, 17157), (14, 14706), (18, 11438), (19, 10836), (21, 9804), (28, 7353), (36, 5719), (38, 5418), (42, 4902), (43, 4788), (57, 3612), (63, 3268), (76, 2709), (84, 2451), (86, 2394), (114, 1806), (126, 1634), (129, 1596), (133, 1548), (171, 1204), (172, 1197), (228, 903), (252, 817), (258, 798), (266, 774), (301, 684), (342, 602), (387, 532), (399, 516)]