81681824

素因数分解:

$2^5\times 7^2\times {\mathrm{113}}^1\times {\mathrm{461}}^1$

素因数の和:598

約数の個数: 72

約数和(自身を含む): 189130788

約数和(自身を除く): 107448964

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 113, 196, 224, 226, 392, 452, 461, 784, 791, 904, 922, 1568, 1582, 1808, 1844, 3164, 3227, 3616, 3688, 5537, 6328, 6454, 7376, 11074, 12656, 12908, 14752, 22148, 22589, 25312, 25816, 44296, 45178, 51632, 52093, 88592, 90356, 103264, 104186, 177184, 180712, 208372, 361424, 364651, 416744, 722848, 729302, 833488, 1458604, 1666976, 2552557, 2917208, 5105114, 5834416, 10210228, 11668832, 20420456, 40840912, 81681824]

約数ペア:

[(1, 81681824), (2, 40840912), (4, 20420456), (7, 11668832), (8, 10210228), (14, 5834416), (16, 5105114), (28, 2917208), (32, 2552557), (49, 1666976), (56, 1458604), (98, 833488), (112, 729302), (113, 722848), (196, 416744), (224, 364651), (226, 361424), (392, 208372), (452, 180712), (461, 177184), (784, 104186), (791, 103264), (904, 90356), (922, 88592), (1568, 52093), (1582, 51632), (1808, 45178), (1844, 44296), (3164, 25816), (3227, 25312), (3616, 22589), (3688, 22148), (5537, 14752), (6328, 12908), (6454, 12656), (7376, 11074)]