81623340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{547}}^1\times {\mathrm{829}}^1$

素因数の和:1391

約数の個数: 72

約数和(自身を含む): 248342640

約数和(自身を除く): 166719300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 547, 829, 1094, 1641, 1658, 2188, 2487, 2735, 3282, 3316, 4145, 4923, 4974, 5470, 6564, 7461, 8205, 8290, 9846, 9948, 10940, 12435, 14922, 16410, 16580, 19692, 24615, 24870, 29844, 32820, 37305, 49230, 49740, 74610, 98460, 149220, 453463, 906926, 1360389, 1813852, 2267315, 2720778, 4081167, 4534630, 5441556, 6801945, 8162334, 9069260, 13603890, 16324668, 20405835, 27207780, 40811670, 81623340]

約数ペア:

[(1, 81623340), (2, 40811670), (3, 27207780), (4, 20405835), (5, 16324668), (6, 13603890), (9, 9069260), (10, 8162334), (12, 6801945), (15, 5441556), (18, 4534630), (20, 4081167), (30, 2720778), (36, 2267315), (45, 1813852), (60, 1360389), (90, 906926), (180, 453463), (547, 149220), (829, 98460), (1094, 74610), (1641, 49740), (1658, 49230), (2188, 37305), (2487, 32820), (2735, 29844), (3282, 24870), (3316, 24615), (4145, 19692), (4923, 16580), (4974, 16410), (5470, 14922), (6564, 12435), (7461, 10940), (8205, 9948), (8290, 9846)]