81613155

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{3011}}^1$

素因数の和:3171

約数の個数: 32

約数和(自身を含む): 141684480

約数和(自身を除く): 60071325

約数列:

[1, 3, 5, 13, 15, 39, 65, 139, 195, 417, 695, 1807, 2085, 3011, 5421, 9033, 9035, 15055, 27105, 39143, 45165, 117429, 195715, 418529, 587145, 1255587, 2092645, 5440877, 6277935, 16322631, 27204385, 81613155]

約数ペア:

[(1, 81613155), (3, 27204385), (5, 16322631), (13, 6277935), (15, 5440877), (39, 2092645), (65, 1255587), (139, 587145), (195, 418529), (417, 195715), (695, 117429), (1807, 45165), (2085, 39143), (3011, 27105), (5421, 15055), (9033, 9035)]