642038176

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{25301}}^1$

素因数の和:25385

約数の個数: 48

約数和(自身を含む): 1383614568

約数和(自身を除く): 741576392

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 61, 104, 122, 208, 244, 416, 488, 793, 976, 1586, 1952, 3172, 6344, 12688, 25301, 25376, 50602, 101204, 202408, 328913, 404816, 657826, 809632, 1315652, 1543361, 2631304, 3086722, 5262608, 6173444, 10525216, 12346888, 20063693, 24693776, 40127386, 49387552, 80254772, 160509544, 321019088, 642038176]

約数ペア:

[(1, 642038176), (2, 321019088), (4, 160509544), (8, 80254772), (13, 49387552), (16, 40127386), (26, 24693776), (32, 20063693), (52, 12346888), (61, 10525216), (104, 6173444), (122, 5262608), (208, 3086722), (244, 2631304), (416, 1543361), (488, 1315652), (793, 809632), (976, 657826), (1586, 404816), (1952, 328913), (3172, 202408), (6344, 101204), (12688, 50602), (25301, 25376)]