81064676

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{337}}^1$

素因数の和:441

約数の個数: 72

約数和(自身を含む): 181254528

約数和(自身を除く): 100189852

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 71, 77, 121, 142, 154, 242, 284, 308, 337, 484, 497, 674, 781, 847, 994, 1348, 1562, 1694, 1988, 2359, 3124, 3388, 3707, 4718, 5467, 7414, 8591, 9436, 10934, 14828, 17182, 21868, 23927, 25949, 34364, 40777, 47854, 51898, 60137, 81554, 95708, 103796, 120274, 163108, 167489, 240548, 263197, 285439, 334978, 526394, 570878, 669956, 1052788, 1141756, 1842379, 2895167, 3684758, 5790334, 7369516, 11580668, 20266169, 40532338, 81064676]

約数ペア:

[(1, 81064676), (2, 40532338), (4, 20266169), (7, 11580668), (11, 7369516), (14, 5790334), (22, 3684758), (28, 2895167), (44, 1842379), (71, 1141756), (77, 1052788), (121, 669956), (142, 570878), (154, 526394), (242, 334978), (284, 285439), (308, 263197), (337, 240548), (484, 167489), (497, 163108), (674, 120274), (781, 103796), (847, 95708), (994, 81554), (1348, 60137), (1562, 51898), (1694, 47854), (1988, 40777), (2359, 34364), (3124, 25949), (3388, 23927), (3707, 21868), (4718, 17182), (5467, 14828), (7414, 10934), (8591, 9436)]