30981555

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{673}}^1$

素因数の和:729

約数の個数: 64

約数和(自身を含む): 62115840

約数和(自身を除く): 31134285

約数列:

[1, 3, 5, 9, 11, 15, 27, 31, 33, 45, 55, 93, 99, 135, 155, 165, 279, 297, 341, 465, 495, 673, 837, 1023, 1395, 1485, 1705, 2019, 3069, 3365, 4185, 5115, 6057, 7403, 9207, 10095, 15345, 18171, 20863, 22209, 30285, 37015, 46035, 62589, 66627, 90855, 104315, 111045, 187767, 199881, 229493, 312945, 333135, 563301, 688479, 938835, 999405, 1147465, 2065437, 2816505, 3442395, 6196311, 10327185, 30981555]

約数ペア:

[(1, 30981555), (3, 10327185), (5, 6196311), (9, 3442395), (11, 2816505), (15, 2065437), (27, 1147465), (31, 999405), (33, 938835), (45, 688479), (55, 563301), (93, 333135), (99, 312945), (135, 229493), (155, 199881), (165, 187767), (279, 111045), (297, 104315), (341, 90855), (465, 66627), (495, 62589), (673, 46035), (837, 37015), (1023, 30285), (1395, 22209), (1485, 20863), (1705, 18171), (2019, 15345), (3069, 10095), (3365, 9207), (4185, 7403), (5115, 6057)]