128520351

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{37}}^2\times {\mathrm{61}}^1$

素因数の和:166

約数の個数: 60

約数和(自身を含む): 211106280

約数和(自身を除く): 82585929

約数列:

[1, 3, 9, 19, 27, 37, 57, 61, 81, 111, 171, 183, 333, 513, 549, 703, 999, 1159, 1369, 1539, 1647, 2109, 2257, 2997, 3477, 4107, 4941, 6327, 6771, 10431, 12321, 18981, 20313, 26011, 31293, 36963, 42883, 56943, 60939, 78033, 83509, 93879, 110889, 128649, 182817, 234099, 250527, 385947, 702297, 751581, 1157841, 1586671, 2106891, 2254743, 3473523, 4760013, 6764229, 14280039, 42840117, 128520351]

約数ペア:

[(1, 128520351), (3, 42840117), (9, 14280039), (19, 6764229), (27, 4760013), (37, 3473523), (57, 2254743), (61, 2106891), (81, 1586671), (111, 1157841), (171, 751581), (183, 702297), (333, 385947), (513, 250527), (549, 234099), (703, 182817), (999, 128649), (1159, 110889), (1369, 93879), (1539, 83509), (1647, 78033), (2109, 60939), (2257, 56943), (2997, 42883), (3477, 36963), (4107, 31293), (4941, 26011), (6327, 20313), (6771, 18981), (10431, 12321)]