81785145

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{5309}}^1$

素因数の和:5409

約数の個数: 32

約数和(自身を含む): 142732800

約数和(自身を除く): 60947655

約数列:

[1, 3, 5, 13, 15, 39, 65, 79, 195, 237, 395, 1027, 1185, 3081, 5135, 5309, 15405, 15927, 26545, 69017, 79635, 207051, 345085, 419411, 1035255, 1258233, 2097055, 5452343, 6291165, 16357029, 27261715, 81785145]

約数ペア:

[(1, 81785145), (3, 27261715), (5, 16357029), (13, 6291165), (15, 5452343), (39, 2097055), (65, 1258233), (79, 1035255), (195, 419411), (237, 345085), (395, 207051), (1027, 79635), (1185, 69017), (3081, 26545), (5135, 15927), (5309, 15405)]