81365475

素因数分解:

$3^1\times 5^2\times {\mathrm{107}}^1\times {\mathrm{10139}}^1$

素因数の和:10259

約数の個数: 24

約数和(自身を含む): 135794880

約数和(自身を除く): 54429405

約数列:

[1, 3, 5, 15, 25, 75, 107, 321, 535, 1605, 2675, 8025, 10139, 30417, 50695, 152085, 253475, 760425, 1084873, 3254619, 5424365, 16273095, 27121825, 81365475]

約数ペア:

[(1, 81365475), (3, 27121825), (5, 16273095), (15, 5424365), (25, 3254619), (75, 1084873), (107, 760425), (321, 253475), (535, 152085), (1605, 50695), (2675, 30417), (8025, 10139)]