81215355

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{3821}}^1$

素因数の和:3951

約数の個数: 32

約数和(自身を含む): 141261120

約数和(自身を除く): 60045765

約数列:

[1, 3, 5, 13, 15, 39, 65, 109, 195, 327, 545, 1417, 1635, 3821, 4251, 7085, 11463, 19105, 21255, 49673, 57315, 149019, 248365, 416489, 745095, 1249467, 2082445, 5414357, 6247335, 16243071, 27071785, 81215355]

約数ペア:

[(1, 81215355), (3, 27071785), (5, 16243071), (13, 6247335), (15, 5414357), (39, 2082445), (65, 1249467), (109, 745095), (195, 416489), (327, 248365), (545, 149019), (1417, 57315), (1635, 49673), (3821, 21255), (4251, 19105), (7085, 11463)]