81350325

素因数分解:

$3^5\times 5^2\times 7^1\times {\mathrm{1913}}^1$

素因数の和:1945

約数の個数: 72

約数和(自身を含む): 172780608

約数和(自身を除く): 91430283

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 81, 105, 135, 175, 189, 225, 243, 315, 405, 525, 567, 675, 945, 1215, 1575, 1701, 1913, 2025, 2835, 4725, 5739, 6075, 8505, 9565, 13391, 14175, 17217, 28695, 40173, 42525, 47825, 51651, 66955, 86085, 120519, 143475, 154953, 200865, 258255, 334775, 361557, 430425, 464859, 602595, 774765, 1004325, 1084671, 1291275, 1807785, 2324295, 3012975, 3254013, 3873825, 5423355, 9038925, 11621475, 16270065, 27116775, 81350325]

約数ペア:

[(1, 81350325), (3, 27116775), (5, 16270065), (7, 11621475), (9, 9038925), (15, 5423355), (21, 3873825), (25, 3254013), (27, 3012975), (35, 2324295), (45, 1807785), (63, 1291275), (75, 1084671), (81, 1004325), (105, 774765), (135, 602595), (175, 464859), (189, 430425), (225, 361557), (243, 334775), (315, 258255), (405, 200865), (525, 154953), (567, 143475), (675, 120519), (945, 86085), (1215, 66955), (1575, 51651), (1701, 47825), (1913, 42525), (2025, 40173), (2835, 28695), (4725, 17217), (5739, 14175), (6075, 13391), (8505, 9565)]