28297808

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{223}}^1$

素因数の和:352

約数の個数: 80

約数和(自身を含む): 69328896

約数和(自身を除く): 41031088

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 103, 112, 154, 176, 206, 223, 308, 412, 446, 616, 721, 824, 892, 1133, 1232, 1442, 1561, 1648, 1784, 2266, 2453, 2884, 3122, 3568, 4532, 4906, 5768, 6244, 7931, 9064, 9812, 11536, 12488, 15862, 17171, 18128, 19624, 22969, 24976, 31724, 34342, 39248, 45938, 63448, 68684, 91876, 126896, 137368, 160783, 183752, 252659, 274736, 321566, 367504, 505318, 643132, 1010636, 1286264, 1768613, 2021272, 2572528, 3537226, 4042544, 7074452, 14148904, 28297808]

約数ペア:

[(1, 28297808), (2, 14148904), (4, 7074452), (7, 4042544), (8, 3537226), (11, 2572528), (14, 2021272), (16, 1768613), (22, 1286264), (28, 1010636), (44, 643132), (56, 505318), (77, 367504), (88, 321566), (103, 274736), (112, 252659), (154, 183752), (176, 160783), (206, 137368), (223, 126896), (308, 91876), (412, 68684), (446, 63448), (616, 45938), (721, 39248), (824, 34342), (892, 31724), (1133, 24976), (1232, 22969), (1442, 19624), (1561, 18128), (1648, 17171), (1784, 15862), (2266, 12488), (2453, 11536), (2884, 9812), (3122, 9064), (3568, 7931), (4532, 6244), (4906, 5768)]