81787725

素因数分解:

$3^5\times 5^2\times {\mathrm{13463}}^1$

素因数の和:13488

約数の個数: 36

約数和(自身を含む): 151927776

約数和(自身を除く): 70140051

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 243, 405, 675, 1215, 2025, 6075, 13463, 40389, 67315, 121167, 201945, 336575, 363501, 605835, 1009725, 1090503, 1817505, 3029175, 3271509, 5452515, 9087525, 16357545, 27262575, 81787725]

約数ペア:

[(1, 81787725), (3, 27262575), (5, 16357545), (9, 9087525), (15, 5452515), (25, 3271509), (27, 3029175), (45, 1817505), (75, 1090503), (81, 1009725), (135, 605835), (225, 363501), (243, 336575), (405, 201945), (675, 121167), (1215, 67315), (2025, 40389), (6075, 13463)]