81316305

素因数分解:

$3^6\times 5^1\times 7^1\times {\mathrm{3187}}^1$

素因数の和:3217

約数の個数: 56

約数和(自身を含む): 167255232

約数和(自身を除く): 85938927

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 243, 315, 405, 567, 729, 945, 1215, 1701, 2835, 3187, 3645, 5103, 8505, 9561, 15935, 22309, 25515, 28683, 47805, 66927, 86049, 111545, 143415, 200781, 258147, 334635, 430245, 602343, 774441, 1003905, 1290735, 1807029, 2323323, 3011715, 3872205, 5421087, 9035145, 11616615, 16263261, 27105435, 81316305]

約数ペア:

[(1, 81316305), (3, 27105435), (5, 16263261), (7, 11616615), (9, 9035145), (15, 5421087), (21, 3872205), (27, 3011715), (35, 2323323), (45, 1807029), (63, 1290735), (81, 1003905), (105, 774441), (135, 602343), (189, 430245), (243, 334635), (315, 258147), (405, 200781), (567, 143415), (729, 111545), (945, 86049), (1215, 66927), (1701, 47805), (2835, 28683), (3187, 25515), (3645, 22309), (5103, 15935), (8505, 9561)]