685621328

素因数分解:

$2^4\times 7^3\times {\mathrm{271}}^1\times {\mathrm{461}}^1$

素因数の和:761

約数の個数: 80

約数和(自身を含む): 1558233600

約数和(自身を除く): 872612272

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 271, 343, 392, 461, 542, 686, 784, 922, 1084, 1372, 1844, 1897, 2168, 2744, 3227, 3688, 3794, 4336, 5488, 6454, 7376, 7588, 12908, 13279, 15176, 22589, 25816, 26558, 30352, 45178, 51632, 53116, 90356, 92953, 106232, 124931, 158123, 180712, 185906, 212464, 249862, 316246, 361424, 371812, 499724, 632492, 743624, 874517, 999448, 1264984, 1487248, 1749034, 1998896, 2529968, 3498068, 6121619, 6996136, 12243238, 13992272, 24486476, 42851333, 48972952, 85702666, 97945904, 171405332, 342810664, 685621328]

約数ペア:

[(1, 685621328), (2, 342810664), (4, 171405332), (7, 97945904), (8, 85702666), (14, 48972952), (16, 42851333), (28, 24486476), (49, 13992272), (56, 12243238), (98, 6996136), (112, 6121619), (196, 3498068), (271, 2529968), (343, 1998896), (392, 1749034), (461, 1487248), (542, 1264984), (686, 999448), (784, 874517), (922, 743624), (1084, 632492), (1372, 499724), (1844, 371812), (1897, 361424), (2168, 316246), (2744, 249862), (3227, 212464), (3688, 185906), (3794, 180712), (4336, 158123), (5488, 124931), (6454, 106232), (7376, 92953), (7588, 90356), (12908, 53116), (13279, 51632), (15176, 45178), (22589, 30352), (25816, 26558)]