81785312

素因数分解:

$2^5\times 7^2\times {\mathrm{43}}^1\times {\mathrm{1213}}^1$

素因数の和:1280

約数の個数: 72

約数和(自身を含む): 191816856

約数和(自身を除く): 110031544

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 49, 56, 86, 98, 112, 172, 196, 224, 301, 344, 392, 602, 688, 784, 1204, 1213, 1376, 1568, 2107, 2408, 2426, 4214, 4816, 4852, 8428, 8491, 9632, 9704, 16856, 16982, 19408, 33712, 33964, 38816, 52159, 59437, 67424, 67928, 104318, 118874, 135856, 208636, 237748, 271712, 365113, 417272, 475496, 730226, 834544, 950992, 1460452, 1669088, 1901984, 2555791, 2920904, 5111582, 5841808, 10223164, 11683616, 20446328, 40892656, 81785312]

約数ペア:

[(1, 81785312), (2, 40892656), (4, 20446328), (7, 11683616), (8, 10223164), (14, 5841808), (16, 5111582), (28, 2920904), (32, 2555791), (43, 1901984), (49, 1669088), (56, 1460452), (86, 950992), (98, 834544), (112, 730226), (172, 475496), (196, 417272), (224, 365113), (301, 271712), (344, 237748), (392, 208636), (602, 135856), (688, 118874), (784, 104318), (1204, 67928), (1213, 67424), (1376, 59437), (1568, 52159), (2107, 38816), (2408, 33964), (2426, 33712), (4214, 19408), (4816, 16982), (4852, 16856), (8428, 9704), (8491, 9632)]