81161352

素因数分解:

$2^3\times 3^4\times {\mathrm{251}}^1\times {\mathrm{499}}^1$

素因数の和:768

約数の個数: 80

約数和(自身を含む): 228690000

約数和(自身を除く): 147528648

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 251, 324, 499, 502, 648, 753, 998, 1004, 1497, 1506, 1996, 2008, 2259, 2994, 3012, 3992, 4491, 4518, 5988, 6024, 6777, 8982, 9036, 11976, 13473, 13554, 17964, 18072, 20331, 26946, 27108, 35928, 40419, 40662, 53892, 54216, 80838, 81324, 107784, 125249, 161676, 162648, 250498, 323352, 375747, 500996, 751494, 1001992, 1127241, 1502988, 2254482, 3005976, 3381723, 4508964, 6763446, 9017928, 10145169, 13526892, 20290338, 27053784, 40580676, 81161352]

約数ペア:

[(1, 81161352), (2, 40580676), (3, 27053784), (4, 20290338), (6, 13526892), (8, 10145169), (9, 9017928), (12, 6763446), (18, 4508964), (24, 3381723), (27, 3005976), (36, 2254482), (54, 1502988), (72, 1127241), (81, 1001992), (108, 751494), (162, 500996), (216, 375747), (251, 323352), (324, 250498), (499, 162648), (502, 161676), (648, 125249), (753, 107784), (998, 81324), (1004, 80838), (1497, 54216), (1506, 53892), (1996, 40662), (2008, 40419), (2259, 35928), (2994, 27108), (3012, 26946), (3992, 20331), (4491, 18072), (4518, 17964), (5988, 13554), (6024, 13473), (6777, 11976), (8982, 9036)]