81744285

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{397}}^1$

素因数の和:502

約数の個数: 64

約数和(自身を含む): 156805632

約数和(自身を除く): 75061347

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 53, 105, 111, 159, 185, 259, 265, 371, 397, 555, 777, 795, 1113, 1191, 1295, 1855, 1961, 1985, 2779, 3885, 5565, 5883, 5955, 8337, 9805, 13727, 13895, 14689, 21041, 29415, 41181, 41685, 44067, 63123, 68635, 73445, 102823, 105205, 147287, 205905, 220335, 308469, 315615, 441861, 514115, 736435, 778517, 1542345, 2209305, 2335551, 3892585, 5449619, 11677755, 16348857, 27248095, 81744285]

約数ペア:

[(1, 81744285), (3, 27248095), (5, 16348857), (7, 11677755), (15, 5449619), (21, 3892585), (35, 2335551), (37, 2209305), (53, 1542345), (105, 778517), (111, 736435), (159, 514115), (185, 441861), (259, 315615), (265, 308469), (371, 220335), (397, 205905), (555, 147287), (777, 105205), (795, 102823), (1113, 73445), (1191, 68635), (1295, 63123), (1855, 44067), (1961, 41685), (1985, 41181), (2779, 29415), (3885, 21041), (5565, 14689), (5883, 13895), (5955, 13727), (8337, 9805)]