27980368

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:272

約数の個数: 80

約数和(自身を含む): 63652176

約数和(自身を除く): 35671808

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 41, 52, 68, 82, 104, 136, 164, 193, 208, 221, 272, 328, 386, 442, 533, 656, 697, 772, 884, 1066, 1394, 1544, 1768, 2132, 2509, 2788, 3088, 3281, 3536, 4264, 5018, 5576, 6562, 7913, 8528, 9061, 10036, 11152, 13124, 15826, 18122, 20072, 26248, 31652, 36244, 40144, 42653, 52496, 63304, 72488, 85306, 102869, 126608, 134521, 144976, 170612, 205738, 269042, 341224, 411476, 538084, 682448, 822952, 1076168, 1645904, 1748773, 2152336, 3497546, 6995092, 13990184, 27980368]

約数ペア:

[(1, 27980368), (2, 13990184), (4, 6995092), (8, 3497546), (13, 2152336), (16, 1748773), (17, 1645904), (26, 1076168), (34, 822952), (41, 682448), (52, 538084), (68, 411476), (82, 341224), (104, 269042), (136, 205738), (164, 170612), (193, 144976), (208, 134521), (221, 126608), (272, 102869), (328, 85306), (386, 72488), (442, 63304), (533, 52496), (656, 42653), (697, 40144), (772, 36244), (884, 31652), (1066, 26248), (1394, 20072), (1544, 18122), (1768, 15826), (2132, 13124), (2509, 11152), (2788, 10036), (3088, 9061), (3281, 8528), (3536, 7913), (4264, 6562), (5018, 5576)]