81719792

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{587}}^1$

素因数の和:726

約数の個数: 80

約数和(自身を含む): 199487232

約数和(自身を除く): 117767440

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 113, 154, 176, 226, 308, 452, 587, 616, 791, 904, 1174, 1232, 1243, 1582, 1808, 2348, 2486, 3164, 4109, 4696, 4972, 6328, 6457, 8218, 8701, 9392, 9944, 12656, 12914, 16436, 17402, 19888, 25828, 32872, 34804, 45199, 51656, 65744, 66331, 69608, 90398, 103312, 132662, 139216, 180796, 265324, 361592, 464317, 530648, 723184, 729641, 928634, 1061296, 1459282, 1857268, 2918564, 3714536, 5107487, 5837128, 7429072, 10214974, 11674256, 20429948, 40859896, 81719792]

約数ペア:

[(1, 81719792), (2, 40859896), (4, 20429948), (7, 11674256), (8, 10214974), (11, 7429072), (14, 5837128), (16, 5107487), (22, 3714536), (28, 2918564), (44, 1857268), (56, 1459282), (77, 1061296), (88, 928634), (112, 729641), (113, 723184), (154, 530648), (176, 464317), (226, 361592), (308, 265324), (452, 180796), (587, 139216), (616, 132662), (791, 103312), (904, 90398), (1174, 69608), (1232, 66331), (1243, 65744), (1582, 51656), (1808, 45199), (2348, 34804), (2486, 32872), (3164, 25828), (4109, 19888), (4696, 17402), (4972, 16436), (6328, 12914), (6457, 12656), (8218, 9944), (8701, 9392)]